If it runs well, keep it. A new 1911 is like a box of chocolates, you never know what you will get. Might run great, might require shipping it back to customer service, replacing parts, finding the magazine that works. Once you get a 1911 that runs reliably, shoots to point of aim, don't get rid of it.
Thats about sums it up. You just never know until you get it and shoot the snot out of it.
I recently picked up an older, 1980's, 9mm Colt Commander, that rumor has it, was a reimport Israeli police trade-in. Whoever had it before me did some "upgrades" to it, a FLGR, what looks to be a Wilson beavertail grip safety, and somebody's flat MSH with what apparently is some sort of "chainlink" treatment. At some point, it looks like it must have had some rust issues and it got a satin nickel re-do. Gun seemed tight and didn't rattle when I got it. It sorta ran OK, but not really. Fair amount of weird stoppages.
Took the FLGR out, replaced it with a standard plug, guide, and spring and it straightened right up function-wise. Hasnt missed a lick since and shoots pretty good.
The MSH had a lot of play in it and it really didnt seem to fit right. Dont like the flat versions anyway. Replaced that with a proper satin nickel arched MSH, and now the gun feels right in my hand and points where Im looking.
Ive thought about replacing the grip safety with an original if I can find one in satin nickel, may still yet, but the Wilson works, and Im really liking the "bump" on the bottom, as it does seem to stop the annoying dead trigger you often get because you got to high a grip on it and it works against itself enough to not trip the trigger.
So, take the "junk" out and get it back to as close to proper spec as you can, and it rattles when you shake it, points and shoots where youre looking, and shoots reliably. Whats not to like, other than the staked in front sight did what they usually do if you shoot them enough and decided to leave the gun.
Ahh, the joys of 1911 ownership. Fiddle, fiddle, fiddle.