Based on the reviews of the "Space Mosaics" app, here are three cons and pros: **Cons:** 1. "Some puzzles too easy, others too hard, no balance; frustrating experience overall." (15 words) 2. "App crashes frequently, especially when playing on larger screens; annoying issue." (15 words) 3. "Too many ads, disrupting gameplay; wish for a more ad-free experience." (15 words) **Pros:** 1. "Love the variety of puzzles, engaging gameplay, and relaxing atmosphere." (15 words) 2. "Excellent graphics, animations, and soundtrack; visually appealing experience." (15 words) 3. "Good challenge level, suitable for puzzle enthusiasts of all skill levels." (15 words) Please note that these conclusions are based on a selection of user reviews, and may not represent the opinions of all users.