Several of us went with Truth Aquatics in Nov 2015. That's the charter my friend who's a local diver in the area recommends.
It was fun diving, a mix between coldwater and tropical diving. We went on the Vision for 6 days of diving.
We had like 14 divers + 14 cameras on the boat. It holds up to 30 divers, Fully loaded that would be very tight, so ask about that.
We didn't find the boat entry to be very comfortable with a camera, pony bottle, and drysuit. It is a haul-off entry. Just be aware of that... Consider going lighter, maybe bring a wetsuit in case you can get away with it in the summer. (we used dry in Nov and found it to be needed...)
We also went on the oil rig dive, but it was a bust because they recently scraped all the marine life off it. So ask about that.
Great trip though. Have fun!