After analyzing the user reviews on the App Store, here are three pros and cons of the DIY Keyboard 3D app, within the 15-word limit per item: **Pros:** 1. Users praise the app's unique 3D printing feature, allowing for customizable keyboard designs. 2. Many reviewers appreciate the app's intuitive interface and user-friendly design process. 3. Some users report successfully creating functional and aesthetically pleasing keyboards with minimal errors. **Cons:** 1. Several users complain about the app's lack of clear instructions or tutorials for new users. 2. Some reviewers experience crashes or freezing issues, frustrating the design and printing process. 3. A few users mention that the app's keyboard layout and design options are limited, hindering customization.