Customers say these building kits are engaging and fun to assemble, with clear instructions and educational content about coding and engineering. Many enjoy building them with family and appreciate the hands-on learning experience. Common themes include excitement upon arrival, successful projects that work as intended, and the ability to customize through coding. However, some report missing pieces, damaged boxes upon delivery, or components that don't function properly. Several mention responsive customer support that replaces defective parts. A few note concerns about durability after extended use or the high cost relative to one-time builds.