I picked up my car after a crash repair and was running late for work. It was parked real close to another car & I mentioned that the panels didn't exactly line-up, but was fobbed off with the bloke saying that it was the best that can be done without the manufactuers tools etc.
Got it to work & upon giving it a proper look, realised it was cak. Took it round the corned to a body repair place for a 2nd opinion & the bloke said it was pretty shoddy.
Went back the next day & after a bit of a rant, they did admit they could probably do better, and took it in for another day.
Problem is, once you've had it back a while you start to notice things you didn't initially notice.
So, I would recommend getting your finest of fine tooth combs out & going over everything.
I recently replaced a sidelight & found that the small plastic cover over the back of the headlamp unit was missing. This could have only happened when they replaced the wing, but upon ringing the repair place, they denied all knowledge and basically told me to get stuffed. I just assumed they would do the job properly.
So check EVERYTHING you can & if you aren't happy with it, then don't accept the work. It might be another day or two of driving a hire 'noddy' car, but better that, than end up with something you aren't 100% happy with.