Loved it. Rustic, yes, but affordable, good diving and very good operation. See if you can get a bunk in the main cabin, I hear the forward cabins are small and stuffy. Listen to the suggestions of what to bring with you. If you are prone to motion sickness, prepare yourself, the ~6 hour crossing from Miami to Bimini can be tough.
The best description I have heard is that it's like camping at sea. This is no luxury boat, but it consistently gets a two thumbs up in this venue. The food, the staff, the reefs, all get my stamp of approval. I have never heard anyone here say one negative thing about this operation. And with good reason!