Based on the user reviews, here are the conclusion: **Cons:** 1. Some users find the game too easy and lacks difficulty progression. "The game is too easy, I finished all levels in a few hours..." 2. Others report issues with lag and poor performance on older devices. "Not suitable for older devices, lags a lot on my iPad 4..." 3. A few users mention the ads are intrusive and disrupt gameplay. "Too many ads, it's annoying and takes away from the experience..." **Pros:** 1. Users praise the game's unique and challenging ball-balancing mechanism. "The concept is genius, very challenging and addictive!" 2. Many appreciate the game's relaxing and calming atmosphere. "So calming and relaxing, great for unwinding and reducing stress..." 3. A few users mention the game's simple yet enjoyable graphics and sound. "Simple yet effective graphics, and the sound effects are great too!"