Never owned one of their AR-15s so can't speak of the quality of the brand but with more manufactures entering the market I guess it could drive prices down?
I had thought about buying a lower from them at some point but then changed my mind because of their policy on uppers that have a barrel below 16", but I'm all for more companies making AR-10.
I just looked and Stag has changed their policy on short barreled uppers, it used to say you could only buy one with a form one but now there's just a warning. I had emailed them with no response about it but looks like someone noticed.