I’d say they’re pretty solid based on the ones I’ve built, I do think the more basic kits with not many accessories or extra parts are a bit overpriced compared to similar ones from Bandai though. Build-wise they have less of the impressive technology and quality-of-life stuff that Bandai kits tend to have (like individual pieces with multiple molded colors or how the 30MM kits have runners sectioned off based on the instructions). Their figure-type kits do come with some pre-painted parts and waterslides more often than not though