I can quote on this from our last trip - even though it was at the Poly. Our room was supposed to have a refrigerator, however, it was far from cool. Our sons prescription spoiled (2 times, Yeah - TWO TIMES!) and we put a water bottle in it and the 7th day it was STILL not cooled off. I spoke with the manager and he let me know they were not refrigerators and he didn't know why they advertised it as that, that they were MINI - Frigerators and housekeeping actually called them Coolers.
That's our $0.02....Just be prepared that it is probably NOT going to be as cold as you would want/need/would expect it to be and then you should be fine.