Only built one, the Luchs, but I liked it... It was a fairly straight-forwrd build, except I didn't care for the indy-link tracks. However, I don't like those kind of tracks regardless of who makes them...
The figures that came with it, I found the molds to be crisp, well detailed, and easy to assemble, although I mix 'em up a lot..
If I see another that interests me, subject -wise, I'd buy it...