Based on the users' reviews, here are three pros and three cons of the NN Marathon Rotterdam 2022 app: **Pros:** 1. "User-friendly interface makes it easy to navigate event details and schedules." 2. "Provides real-time updates on runners' progress, keeping family and friends informed." 3. "Push notifications remind users of important event details and deadlines." **Cons:** 1. "Crashes frequently, causing frustration and disrupting access to essential features." 2. "Lack of clear instructions on how to use some features, leading to user confusion." 3. "Some users experienced inaccuracies in distance tracking, affecting performance monitoring." Please note that these pros and cons are based on a snapshot of user reviews at a specific point in time and may not reflect the full range of opinions on the app.