Based on the users' reviews of the "Slices" app, here are three cons and pros in English, with 15 words limit for each item: **Cons:** 1. Some users found the app's user interface confusing and difficult to navigate. 2. A few reviewers experienced bugs and crashes, disrupting their running experience. 3. Some users felt that the app lacked advanced features, such as customizable routes and metrics. **Pros:** 1. Many users praised the app's clean design and user-friendly interface, making it easy to track runs. 2. Reviewers appreciated the app's ability to track and analyze their runs, providing valuable insights. 3. Users enjoyed the app's social features, allowing them to connect and compete with friends. Note: The reviews are subject to change as new users provide feedback.