The 9mm versions are great, as are the .45 versions, I've no experience with their 10mm guns, but they do look good.
I've their 9mm and .45ACP pistols in both the single stack "Tactical" and double stack 1911-A2 models and all have over 15K rounds through them with the oldest, the single stack .45, at about 25K rounds.
I say that in my experience you couldn't really ask for more.
They fixed the .45 1911-A2 when the barrel lugs failed a few months ago, paying the shipping both ways. I posted a thread about my experience.
My oldest 9mm, the 1911-A2, was a shot show sample and the extractor(external) broke after a few thousand rounds, they would have simply sent me a replacement extractor but they made a design change to the extractor for the full production so I sent the gun back to them and they fitted a new upper, again they paid shipping both ways.
If I shot a lot of 10mm I'd have one, but since I have a Colt Delta Elite that I rarely shoot its never really made sense to me. RIA guns are made to be shot, if you plan to resell, I'd suggest looking elsewhere, but if you plan to shoot the snot out of it like I did, I don't see how you could go wrong with an RIA.
If you can convince them on the phone or in their on-line chat that you know what you are doing, they will generally send replacement parts in the mail to you when needed, but little in a 1911 is truly "drop-in", but most of it is not rocket science to fit.