Took 3 of my exams here (mainly for the proximity), and I have had problems with 2 of my exams. For the first one, the power went out randomly in the middle of my exam (bad weather happens, so it wasn't too big of a concern). However, for my next test, I got an email late Saturday night from Prometric saying that my Monday exam was canceled, even though I got a confirmation email that morning saying that the test was still on. I looked online and this location wasn't even listed on the list of closed testing centers until Sunday afternoon. Plus, as of now, the Prometric website says that my test is still on, even though it's not. And of course, with it being the weekend, nobody contacts you to try to reschedule and they don't even provide any contact information so you can go ahead and try to reach them. And the odd thing is, we were well out of the range of any tropical storms or hurricanes, so there is no reason for the last minute cancellation.
The only positive things I have to say about this location is that it is a very fancy building and that the staff is efficient. Other than those two things, I'm afraid I don't have many nice things to say.
To be honest, go to the Ft. Lauderdale location. Yes, it's probably an hour or so drive from Miami and the center is not as nice, but the staff is much nicer and the overall experience for an already stressful test day is so much better.