FWIW I have built two Model 1 kit rifles, a 20 inch varmit and 20 service rifle. Both kits were delivered as scheduled and have thus far worked flawlessly. Accuracy is at a par with any other AR 15 I have seen. If you read the posts long enough you will see every mfg trashed one time or another by someone who says they own that brand. Many of the parts used by the mfg are built by some subcontractor, often the same subcontractor. Quality control is the issue and so is human error.
The bottom line is that until someone does an exhaustive survey of actual owners and compares them to other mfg, its all opinion. What is not opinion is that (1 name brand mfg. generally cost more and are worth more at resale and (2 mfg. that have lousy customer support don't stay in business long. Warren at Ameetec Arms has been a real gem at helping me with a RRA two stage trigger I bought. There are lots of other testimonies of excellent customer support, but that is the one which comes at the top of my list. (3 there are several good mfg.
My choice for Model 1 was based on (1 I bought the gun to shoot, not as an investment, 2) brand name is not important to me, especially since many of the mfg use the same sub-contractors.
Either rifle mfg. you are considering will serve you well. You can't make a bad choice on either.