I've stayed at the Belizean Reef the last four times I've been to AC. Very nice facility and the view from the roof is great. Enjoyed having a full size refrigerator and stove, and the air conditioning in the bedroom can feel really good after the sun. Jennie (on-site manager) and Leonor (very nice cleaning lady) are helpful and will pretty much leave you alone unless you need them. I have always stayed on the first floor and liked the little table and chairs on the patio right on the beach.
Hope you have a great time!