I picked up a Mid length chrome lined HBAR kit from them about a year ago for $450 as my first AR. Put it on a spikes lower. It's been a great rifle. I have about 450 rounds through it now and no issues whatsoever. Most of what I've been shooting has been Independance 5.56 xm193 and my Hornady 55gr SP hand loads, with some Winchester 5.56 55gr thrown in while I was at an out of town range.
The kit went together very nicely with no issues. It arrived nicely packed. The LPK was as good as any of the others I've worked with (spikes, PSA, Red Barn custom). The only upgrade I put on it was an Ergo grip.
I'd do another DTI with no reservations.
For reference, I've put together several other AR's...a middy Dissy from PSA, a Stag 3GH, and from scratch 7.62x39 and I'm building a 308 right now. I also have to brothers in law and between us we've built about 20 AR's. The first AR I shot was in the early 90's and it was a Colt HBAR.