Based on the user reviews on the Apple App Store, here are three cons and three pros of the Laser Gems Puzzle app: Cons: 1. Difficult to start: Some users found it tough to get into the game, citing a steep learning curve. 2. Glitches and bugs: A few reviewers experienced issues with the app's performance, including crashes and technical difficulties. 3. Limited levels: Users wanted more levels and variety in the game, feeling that it becomes repetitive. Pros: 1. Addictive gameplay: Many reviewers praised the game's engaging and addictive nature, making it hard to put down. 2. Colorful visuals: Users appreciated the app's vibrant and colorful graphics, making it a visually appealing experience. 3. Relaxing and calming: Reviewers found the game to be a great way to unwind and relax, providing a calming experience.