Based on the user reviews, here are three cons and three pros with a 15-word limit each: **Cons:** 1. "Disappointed by the lack of challenging puzzles, too easy for experienced Sudoku players." 2. "In-app purchases for more levels are frustrating, feels like nickel-and-diming users." 3. "UI can be clumsy, navigating through levels and settings can be cumbersome." **Pros:** 1. "Gemudoku offers a great balance of difficulty levels, suitable for beginners and experts alike." 2. "Beautiful graphics and animations make the app visually appealing and engaging." 3. "Gameplay is smooth and glitch-free, allowing for a seamless puzzle-solving experience." Please note that these are just summaries based on the user reviews and may not reflect the full range of opinions on the app.