Based on the users' reviews, here are three cons and three pros of the Shift Balls app in 15 words or less: **Cons:** 1. **Poor customer support**: Users report difficulty getting help from the company and slow response times. 2. **Limited game modes**: Some users find the game modes too limited and repetitive, leading to boredom. 3. **Frequent ads and in-app purchases**: Advertisements and pressure to make in-app purchases can be frustrating for some users. **Pros:** 1. **Addictive gameplay**: Many users find the game highly engaging and challenging, making it hard to put down. 2. **Easy to learn**: The simple controls and intuitive gameplay make it accessible to players of all ages. 3. **Rewarding and satisfying**: Users enjoy the sense of accomplishment and satisfaction from completing levels and achieving milestones.