Based on the users' reviews, here are the conclusions: **Pros:** 1. **Accurate stroke tracking**: Zepp's advanced technology accurately tracks strokes and provides detailed analytics. 2. **Helpful for improvement**: The app's insights and statistics help tennis players improve their game and identify areas to focus on. 3. **Convenient and easy to use**: The app is user-friendly, easy to navigate, and can be accessed on-the-go. **Cons:** 1. **Expensive subscription model**: Monthly and annual subscription fees can be costly for some users. 2. ** Limited offline access**: The app requires internet connection to work, which can be inconvenient for players without Wi-Fi. 3. **Battery life issues**: Some users experience battery drain issues while using the app, causing interruptions and frustration.