diff --git a/acrobat/blocks/rnr/rnr.css b/acrobat/blocks/rnr/rnr.css
index 5cddcb31..c26d3fa6 100644
--- a/acrobat/blocks/rnr/rnr.css
+++ b/acrobat/blocks/rnr/rnr.css
@@ -51,6 +51,7 @@
   background-repeat: no-repeat;
   width: 22px;
   height: 22px;
+  margin: 1px;
 }
 
 .rnr-rating-fieldset input.is-active {
@@ -120,7 +121,9 @@
 }
 
 .rnr-comments:focus ~ .rnr-comments-footer > .rnr-comments-submit,
-.rnr-comments:not(:placeholder-shown) ~ .rnr-comments-footer > .rnr-comments-submit {
+.rnr-comments:not(:placeholder-shown)
+  ~ .rnr-comments-footer
+  > .rnr-comments-submit {
   display: block;
 }
 
diff --git a/acrobat/blocks/rnr/rnr.js b/acrobat/blocks/rnr/rnr.js
index 5aa484a8..7bde7272 100644
--- a/acrobat/blocks/rnr/rnr.js
+++ b/acrobat/blocks/rnr/rnr.js
@@ -2,7 +2,7 @@
 /* eslint-disable compat/compat */
 /* eslint-disable max-len */
 import localeMap from '../../scripts/maps/localeMap.js';
-import { setLibs } from '../../scripts/utils.js';
+import { loadPlaceholders, setLibs } from '../../scripts/utils.js';
 
 const miloLibs = setLibs('/libs');
 const { createTag } = await import(`${miloLibs}/utils/utils.js`);
@@ -10,6 +10,7 @@ const { createTag } = await import(`${miloLibs}/utils/utils.js`);
 // #region Constants
 
 const COMMENTS_MAX_LENGTH = 500;
+const COMMENTS_MAX_LENGTH_ALLOWED = 10000;
 const SHOW_COMMENTS_TRESHOLD = 5;
 const ASSET_TYPE = 'ADOBE_COM';
 const RNR_API_URL = (function () {
@@ -67,11 +68,31 @@ const removeOptionElements = (el) => {
   });
 };
 
+function processNumberOption(value, minValue, maxValue, defaultValue) {
+  const numberValue = parseInt(value, 10);
+  if (!numberValue) return defaultValue;
+  if (numberValue < minValue) return minValue;
+  if (numberValue > maxValue) return maxValue;
+  return numberValue;
+}
+
 function extractMetadata(options) {
   metadata.hideTitleOnUninteractive = options.hidetitle ? options.hidetitle === 'true' : true;
-  metadata.initialValue = snapshot ? snapshot.rating : parseInt(options.initialvalue, 10) || 0;
-  metadata.commentsMaxLength = parseInt(options.commentsmaxlength, 10) || COMMENTS_MAX_LENGTH;
-  metadata.showCommentsThreshold = parseInt(options.commentsthreshold, 10) || SHOW_COMMENTS_TRESHOLD;
+  metadata.initialValue = snapshot
+    ? snapshot.rating
+    : processNumberOption(options.initialvalue, 0, 5, 0);
+  metadata.commentsMaxLength = processNumberOption(
+    options.commentsmaxlength,
+    1,
+    COMMENTS_MAX_LENGTH_ALLOWED,
+    COMMENTS_MAX_LENGTH,
+  );
+  metadata.showCommentsThreshold = processNumberOption(
+    options.commentsthreshold,
+    0,
+    5,
+    SHOW_COMMENTS_TRESHOLD,
+  );
   metadata.interactive = snapshot ? false : !options.interactive || options.interactive === 'true';
   metadata.verb = options.verb;
 }
@@ -197,7 +218,7 @@ async function postReview(data) {
 
 function initRatingFielset(fieldset, rnrForm, showComments) {
   // Create legend
-  const legend = createTag('legend', {}, window.mph['rnr-title']);
+  const legend = createTag('legend', {}, window.mph['rnr-title'] || '');
   fieldset.append(legend);
 
   // Create rating inputs
@@ -332,10 +353,10 @@ function initCommentsFieldset(fieldset) {
   const textarea = createTag('textarea', {
     class: 'rnr-comments',
     name: 'comments',
-    'aria-label': window.mph['rnr-comments-label'],
+    'aria-label': window.mph['rnr-comments-label'] || '',
     cols: 40,
     maxLength: metadata.commentsMaxLength,
-    placeholder: window.mph['rnr-comments-placeholder'],
+    placeholder: window.mph['rnr-comments-placeholder'] || '',
   });
   if (!metadata.interactive) textarea.setAttribute('disabled', 'disabled');
 
@@ -349,7 +370,7 @@ function initCommentsFieldset(fieldset) {
     class: 'rnr-comments-submit',
     type: 'submit',
     disabled: 'disabled',
-    value: window.mph['rnr-submit-label'],
+    value: window.mph['rnr-submit-label'] || '',
   });
 
   footerContainer.append(characterCounter, submitTag);
@@ -393,12 +414,16 @@ function initSummary(container) {
 
 function initControls(element) {
   const container = createTag('div', { class: 'rnr-container' });
-  const title = createTag('h3', { class: 'rnr-title' }, window.mph['rnr-title']);
+  const title = createTag('h3', { class: 'rnr-title' }, window.mph['rnr-title'] || '');
   const form = createTag('form', { class: 'rnr-form' });
   const ratingFieldset = createTag('fieldset', { class: 'rnr-rating-fieldset' });
   const commentsFieldset = createTag('fieldset', { class: 'rnr-comments-fieldset' });
   const summaryContainer = createTag('div', { class: 'rnr-summary-container ' });
-  const thankYou = createTag('div', { class: 'rnr-thank-you' }, window.mph['rnr-thank-you-label']);
+  const thankYou = createTag(
+    'div',
+    { class: 'rnr-thank-you' },
+    window.mph['rnr-thank-you-label'] || '',
+  );
 
   // Submit
   const submit = (ev) => {
@@ -454,7 +479,16 @@ function initControls(element) {
 
 // #endregion
 
-// initialization function
+// Preload icons
+function preloadIcons() {
+  const icons = ['/acrobat/img/icons/star-outline.svg', '/acrobat/img/icons/star-filled.svg'];
+  for (const iconPath of icons) {
+    const img = new Image();
+    img.src = iconPath;
+  }
+}
+
+// Initialization function
 export default async function init(element) {
   const options = getOptions(element);
   removeOptionElements(element);
@@ -463,6 +497,8 @@ export default async function init(element) {
   if (!metadata.verb) {
     window.lana?.log('Verb not configured for the rnr widget');
   }
+  preloadIcons();
+  await loadPlaceholders();
   await loadRnrData();
   initControls(element);
 }
diff --git a/acrobat/scripts/susiAuthHandler.js b/acrobat/scripts/susiAuthHandler.js
index e676aad4..bd6f5125 100644
--- a/acrobat/scripts/susiAuthHandler.js
+++ b/acrobat/scripts/susiAuthHandler.js
@@ -1,4 +1,5 @@
 import susiAnalytics from './alloy/susi-auth-handler.js';
+import { loadPlaceholders } from './utils.js';
 
 function handleButton(link, action) {
   link.classList.add('susi-cta');
@@ -15,26 +16,7 @@ function handleButton(link, action) {
 }
 
 export default async function handleImsSusi(susiElems) {
-  const { setLibs } = await import('./utils.js');
-  const miloLibs = setLibs('/libs');
-  const { getConfig } = await import(`${miloLibs}/utils/utils.js`);
-  const config = getConfig();
-
-  if (!Object.keys(window.mph || {}).length) {
-    const placeholdersPath = `${config.locale.contentRoot}/placeholders.json`;
-    try {
-      const response = await fetch(placeholdersPath);
-      if (response.ok) {
-        const placeholderData = await response.json();
-        placeholderData.data.forEach(({ key, value }) => {
-          window.mph[key] = value.replace(/\u00A0/g, ' ');
-        });
-      }
-    } catch (error) {
-      window.lana?.log(`Failed to load placeholders: ${error?.message}`);
-    }
-  }
-
+  await loadPlaceholders();
   susiElems.forEach((link) => {
     const match = link.href.match(/-(sign-up|sign-in)/);
     if (match) {
diff --git a/acrobat/scripts/utils.js b/acrobat/scripts/utils.js
index 4012c3f4..6676304e 100644
--- a/acrobat/scripts/utils.js
+++ b/acrobat/scripts/utils.js
@@ -57,3 +57,24 @@ export function isOldBrowser() {
     name === 'Internet Explorer' || (name === 'Microsoft Edge' && (!version || version.split('.')[0] < 86)) || (name === 'Safari' && version.split('.')[0] < 14)
   );
 }
+
+export async function loadPlaceholders() {
+  const miloLibs = setLibs('/libs');
+  const { getConfig } = await import(`${miloLibs}/utils/utils.js`);
+  const config = getConfig();
+
+  if (!Object.keys(window.mph || {}).length) {
+    const placeholdersPath = `${config.locale.contentRoot}/placeholders.json`;
+    try {
+      const response = await fetch(placeholdersPath);
+      if (response.ok) {
+        const placeholderData = await response.json();
+        placeholderData.data.forEach(({ key, value }) => {
+          window.mph[key] = value.replace(/\u00A0/g, ' ');
+        });
+      }
+    } catch (error) {
+      window.lana?.log(`Failed to load placeholders: ${error?.message}`);
+    }
+  }
+}