The first 1911 I ever owned was a Colt Mk IV series 70, nickel plated. She was a real beaut. I had that one about 1981-2, somewhere around there. Then I had a Colt Mk IV series 80, blue steel, she was nice too. In both cases, financial situations forced me to sell both pistols.
I've owned 2 OLD Firestorm 1911s, (from the old company in Spain that went belly up). They were ok, but, I wasn't really happy with them. I also had a Para Ordnance P13.45 and a P14.45. Again, financial situation, forced me to sell the Canadian pistols. .
Now I have this one, Rock Island Armory FS Tactical. Quality wise, I'd put this on par with just about any 1911 made today. She feeds hollow points like their going out of style. And the accuracy, well, I think the pistol is capable of better than I am. If it was in nickel, she'd be perfect.