IF you are still considering options for BOAT DIVES, I highly recommend "Div'Ocean". They take a maximum of 6 - 8 divers and sometimes you may be the only 2 divers on the boat (and yes, they still go take you out). Super easy because they set up your equipment just the way you like it on the boat, and you just take 2-3 small steps from their dock onto the boat, with handholds. You can do whatever is easiest for YOU re: putting on equipment (on the boat, with help if needed OR in the water) and the same with removing the equipment - it call all be removed in the water and they are happy to pull it on the boat and assist you back on board, if needed.
They plan 1 hour between dives, supply juice, water, raisin buns and fruit and are just the nicest and most fun dive op we've ever used. Also they are happy to help with fish id and have an uncanny ability to find fish you're interested in (for me, always lots of Reef Squid).
We dove with them for a week in Dec, 2016, when my arthritic hip was so bad I wasn't sure I'd even be able to dive, and I took all my equipment off in the water - super easy ! And for 2 weeks in Dec, 2017 (after my hip replacement) and were again very gracious and helpful.
Nice clean water to rinse your equipment and they lock up your equipment each night.
Prior years we used Habitat and the service there was ok, considering how many people were on the boat, but as I worsened I didn't feel comfortable there. I'm 68 now and after hip surgery feel really happy to have found Div'Ocean's great dive op where I can feel 100% safe and happy.
Here's their website (also did reviews for our 2016 trip in Undercurrent and TripAdvisor).
http://www.divoceanbonaire.com/