Based on the users' reviews of the Duct Tape 3D app, here are three cons and pros: **Cons:** 1. Poor performance with complex models, often crashes and loses work. (15 words) 2. User interface is cluttered and overwhelming, hard to navigate and find features. (15 words) 3. Limited functionality and features compared to other 3D modeling apps. (15 words) **Pros:** 1. Easy to use for beginners, intuitive interface and tutorials help learn quickly. (15 words) 2. Great for casual creators, allowing for quick and fun 3D modeling experiences. (15 words) 3. Constantly updated with new features and improvements, active developer community. (15 words) Please note that these conclusions are based on a summary of the reviews at the time and may change as more reviews are added.