Based on the users' reviews, here are three cons and three pros of the Poly Art 3D Puzzle app: **Cons:** 1. "Limited puzzle types and complexity" - Users find the puzzles too repetitive and lacking in variety. 2. "Glitches and bugs" - Several users experienced crashes, freezing, and other technical issues. 3. "No tutorial or guidance" - New players struggle to understand how to play and complete puzzles without clear instructions. **Pros:** 1. "Addictive and challenging" - Puzzles are engaging and require skill and strategy to solve. 2. "Beautiful 3D graphics" - Users praise the app's stunning visuals and immersive atmosphere. 3. "Relatively easy to learn" - Despite the lack of tutorial, many users quickly pick up the gameplay mechanics. Please note that user reviews are subjective and may vary in their opinions. These conclusions are based on a general trend in the reviews and may not represent the opinions of every user.