Based on the user reviews on the App Store, here are three pros and three cons of the "Underwater City" app: **Pros:** 1. **Immersive experience**: Users praise the app's engaging storyline and stunning visuals that transport them to an underwater world. 2. **Addictive gameplay**: Many reviewers find the tile-matching puzzles challenging yet rewarding, making them want to play more. 3. **Regular updates**: Developers regularly release new content, events, and game modes, keeping the app fresh and exciting. **Cons:** 1. **Difficulty spikes**: Some users find the game's difficulty level increases too rapidly, leading to frustration and disappointment. 2. **Limited energy system**: Reviewers criticize the app's energy system, feeling it restricts gameplay and makes progression too slow. 3. **In-app purchases pressure**: A few users express concerns about the app's aggressive push for in-app purchases, which can be off-putting.