I have never built a kit guitar before, but recently my wife bought the Telecaster-style Grizzly kit for me for my birthday. It was complete, the parts seemed very well made, and the wood was sealed, which I didn't expect (bonus!). The neck was a tight fit, and the instructions detailed how to mark the holes required for the bridge, and string ferrules for through the body strings. I used a drill press for this, and am very pleased with the results (other than a little chip out, but that's my fault!). The guitar assembled easily over the course of a few evenings, and the only issue I had was getting the intonation set. In the end, I realized I didn't have the neck joint screws tightened enough, and that solved the intonation issue. I've been playing it for about two weeks now, and even though I haven't finished it, the neck is one of the fastest I've ever played. it was dead-straight, right out of the box, didn't have to touch the truss rod at all. The frets are smooth (and this is winter in Texas, with low humidity!), and after a little tweaking, I have absolutely no string buzz anywhere!
I'm VERY pleased with this kit, and will likely build several more Grizzly kits in the future! Thanks Grizzly!