Based on the user reviews, here are three pros and cons of the Just Idle Diamond Paint app: **Pros:** 1. "Coloring books bring relaxation and entertainment; soothing and calming experience" (Users rave about the app's calming effects and enjoyable coloring experience.) 2. "Variety of paintings and themes make the app stand out from others" (Users appreciate the app's diverse painting selection and unique themes.) 3. "Easy to use and navigate; straightforward interface" (Users praise the app's user-friendly interface and ease of use.) **Cons:** 1. "In-app purchases and ads can be frustrating and overwhelming" (Users complain about the app's aggressive advertising and excessive in-app purchases.) 2. "Limited customization options and color palettes" (Users feel that the app lacks customization options and color palettes, limiting their creativity.) 3. "Glitches and crashes occur occasionally, disrupting the experience" (Users report occasional technical issues and crashes that disrupt their coloring experience.)