Ditto, relocated there from Doha. It is conveniently close to a large cluster of AirBnBs, which helps out big time while waiting for a resident's permit.
It probably could be fast, if you have all your ducks lined up. UAE immigration wanted me to go back to Canada to pick up a fresh notarized copy of my educational and criminal records.
I really don't understand why this kind of thing can't be done over a video conference, and then printed, stamped, scanned, emailed, printed locally. But, I got a nice little trip to my hometown out of it, so whatever.