We were down there last week and our main group stayed at the Belizean Reef. The rest of the party at the Palms which we were very happy in, but more expensive than the Belizean. We were suppose to move over the Belizean but they were some problems. Suggest a second or third floor unit--and the units are nice and roomy inside with nice side balconies on these floors. They were happy with the accomodations and the maid service, etc.
Here is my humble suggestions for AC--
staying in a condo, I would pack all dry food I thought I would be using. The food in the supermarkets are pricey..and we all agreed we would leave more clothes at home and bring more food. There are two major supermarkets in town, but if you head to the little "town" shops you can usually find a better price. There are two wholesale liquor stores--one domestic and one import--and the liquor and the mixes are much cheaper there then the supermarkets and they are both on middle street. (Trust me, won't take long to find things in town, with basically two streets).
To do laundry is also expensive, so alittle woolite can go along way.
Have fun, the people are great, Island Dog, has his office in front of the Reef, does pencil art and a nice guy.