Customers say these subscription boxes are fun and engaging to build, with clear instructions and helpful video guides that make assembly straightforward. Many appreciate the educational value, learning about coding, electronics, and engineering concepts through hands-on projects. Kids stay excited between deliveries and enjoy customizing their robots through coding. Common feedback highlights responsive customer service that quickly replaces defective parts. Some note occasional component issues or durability concerns with repeated use, while a few experienced non-functional units despite following instructions carefully. Overall, customers value the quality builds and supportive community experience.