Based on the users' reviews of the "Mermaid Creative Coloring Book" app, here are the cons and pros: **Cons:** 1. Limited colors and shades available, making it annoying to find the right hue. (15 words) 2. Some users found the app's digital coloring experience not as relaxing as expected. (15 words) 3. Occasional glitches and crashes may occur, causing frustration and lost work. (15 words) **Pros:** 1. The app offers a wide variety of mermaid-themed designs and scenes to color. (15 words) 2. Users appreciate the ability to customize colors, thickness, and texture of brushes. (15 words) 3. The app's intuitive interface makes it easy to navigate and start coloring quickly. (15 words) Note that the reviews are generally positive, with many users enjoying the app's relaxing and creative experience. However, some users have mentioned the limitations and occasional issues mentioned above.