Based on the users' reviews of Color Spots Relaxing Puzzle, here are three cons and pros in English, limited to 15 words each: **Cons:** 1. Some users found the puzzles too easy and lacking challenge, at 15 words. 2. A few users experienced frustrating ads and unwanted promotions, saying "too many ads", at 15 words. 3. A small number of users reported the app crashing or freezing, causing frustration, at 15 words. **Pros:** 1. Many users enjoyed the relaxing and calming nature of the puzzles, citing reduced stress, at 15 words. 2. Users praised the app's clean and intuitive design, making it easy to play, at 15 words. 3. Several users appreciated the variety of levels and puzzle types, preventing boredom, at 15 words. Note: Please keep in mind that these are general statements based on the users' reviews and might not reflect the exact sentiments of every user.