Based on the users' reviews of the Happy Housing Block Puzzle app, here are three cons and pros in English, limited to 15 words each: **Cons:** 1. Some users found the puzzles too easy, making the game less challenging and engaging. 2. Others experienced frustrating bugs and glitches that ruined gameplay. 3. A few reviewers felt the game lacked variety and creativity in its puzzle designs. **Pros:** 1. Many users praised the app's addictive gameplay, making it hard to put down. 2. Reviewers appreciated the calming and soothing music and sound effects. 3. The game's simple yet intuitive design was praised for being easy to learn and play. Please note that these are general summaries based on the available reviews, and individual experiences may vary.