What's wrong with their Chally II? It was reviewed in FSM, and was a pretty good score. I have one, and it doesn't look too bad.
Their newer kits are just fine, in many cases, they are just fantastic kits, such as all their large rail guns and tank transporters, and you get them at very good prices.
As for their old kits, well, I wouldn't say that you'd get a better result from sculpting a 2-pound hunk of plastic. Everyone complains about them. Ok, so they're not tamiya, but you got what you paid for. They're ridiculously cheap, and if you take more care in building, doing a few scratched bits, and take care painting them, they'll build into decent models.