Based on the reviews on the App Store, here are three cons and pros for the "Merge Blocks" app: **Pros:** 1. Engaging gameplay: Users praise the addictive and challenging puzzle game that keeps them coming back for more. 2. Simple yet strategic: Reviewers appreciate the easy-to-learn gameplay that is still deep and challenging. 3. Relaxing and calming: Many users find the app to be a great way to unwind and relax, with a soothing gameplay experience. **Cons:** 1. Limited features: Some users feel that the app lacks variety and new features, making it feel repetitive. 2. Advertising issues: A few reviewers have reported issues with ads disrupting their gameplay and being too intrusive. 3. Some bugs and glitches: A few users have experienced technical issues, such as blocks not merging correctly or game data not saving properly.