We stayed at Habitat last year, over Thanksgiving. We also arrived very late but had a nice room upstairs over-looking the ocean. It was clean and most of the stuff worked, certainly the fridge did and the TV - but couldn't get the Cowboys game on Thanksgiving Day! Oh well, had to dive instead! Our room was clean and cool, and ready when we got there at 10pm.
The real problem with this place is it's miles from anywhere, so you need a car to get anywhere else - which we had. It sometimes took a while to get the tanks (we always had to tell them 30mins before we needed them!) Food was pretty basic and boring, but unless you want to drive other places at night you eat there. The bar was OK but the staff could smile some more and be generally more friendly. In fact I think I wrote that on the comments sheet! They don't seem to realise you'll spend more time (and money) in the bar if you're all having a good friendly time!
The dive operation didn't know we were diving with them on Day1, and the first boat left without us, but they put us on boat 2 and after that they sorted it out and the dive staff (especially Angela) were just great. The diving was very good from the boat trips and they varied where we went and where people asked to go if others had not been there before. Diving right there on Habitat reef is great. It's right off the shore and you can dive anytime, early morning, sunset or night! We spent many hours diving there and never seen as many scorpion fish on one dive as we did right outside that hotel. 2 at a time, 6,7,8 even 10 on one dive! They must like it there. Night dives were also great there, and sometimes we were the only people in the water!
Other shore diving - do not expect this island to be like Bonaire - it's not. Shore diving is available, but the places are badly marked and we even had a book, never did find one site we were looking for. Several sites were a long swim out to the reef (10mins) but once on the reef the structure was lovely, mushroom forests, rays turtles etc. The diving here is very worth it, as not as many divers as Bonaire and the reefs are unspoilt with lots of fish, big and small. We would return - but after a return trip to Bonaire.