After analyzing the user reviews, here are the cons and pros of the Detroit Free Press Marathon app: **Cons:** 1. Poor connectivity and lagging issues reported by several users, frustrating their experience. 2. Some users found the app's layout and navigation to be confusing and difficult to use. 3. A few users experienced difficulty finding the starting and finishing points of the race. **Pros:** 1. Many users praised the app's real-time tracking feature, making it easy to monitor runner progress. 2. The app's push notifications and alerts were effective in keeping runners informed about course updates and timing. 3. The app's simple and user-friendly design allowed many users to easily access helpful features and information. Please note that these are general summaries based on the user reviews and may not reflect the specific opinions and experiences of all users.