Just back from a week (Sat-Fri) Bahamas trip with Juliet. Lovely fishy shallow diving (never deeper than 20 metres), healthy coral and sponges. The one wreck dive, the extraordinarily shallow Sapona, offered a lot of wows per minute both afternoon and night dives; so many odd creatures as well as huge schools of fish to get lost among. Good turtle sightings, both leatherback and loggerheads, countless reef sharks and a brief glimpse of a hammerhead. I did not see the tunicate overgrowth that was a distressing feature of Turks & Caicos when we did that with the Explorer liveaboard. As Caribbean diving goes, it was pretty fine -- all in the neighbourhood around Bimini and the Cat cays. Four dives a day Sun-Wed including a night dive, three dives on the Thursday before we started sailing back to Miami. The ride from and to Miami can be bouncy.
Front cabin offered air con and ensuite, with one double and one single bed shielded from each other by a bulkhead. There are other ensuite cabins as well. Food was FANTASTIC (ask which weeks Amanda will be the chef), excellent crew all round. Narrow corridors and cosy dining area, lots of places on deck either to socialize or to be alone with the horizon, tho not a lot of shade. Steep ladder-like stairs inside and out; better not to have arthritic knees.
Also better to know how to navigate - unless they are drift dives, there will not be a guide in the water and, really, how many times do you want to go badly off course, shoot up an SMB, surface several hundred metres from the boat, and beg a ride home in the Zodiac of Shame? Good thing that as mentioned the crew are very nice people. The visibility was often limited and some sites' topology didn't lend itself to landmarking, so we really needed to up our compass game. Your own air consumption was your only limit to the dive time if it wasn't a drift; on the drifts, we went up in two groups, with the second group starting up when the weakest link hit 1200 psi IIRC.
Quiet, friendly group of about a dozen divers in all, with some great photographers. There are trips to St Croix in the winter and interesting repositioning trips between there and Miami.