I was in Bonaire in June. Stayed and dived at Capt. Don's. Resort was okay, as was the diving. We stayed in a two bedroom unit behind the ocean front rooms. The unit was a large, clean and satisfactory, the A/C was broken, but fixed the 2nd day and then worked great and was needed.
Try the pizza at the resort's restaurant, the best food there. Also ate at Buddy Dive resort next door; food was about the same, not great and expensive for what you get. There is a very good French restaurant about a mile from the resort which is excellent, the best food I had on the island. Overall, the food is just okay and expensive.
Capt. Don's dive shop and crew were very good and went out of their way, except one dive master, to help everyone on the dives. There was a $110.00 extra charge for nitrox. The diving was not as great as I expected; sea life was limited and the reefs were still somewhat bare above 40.' We did see three octopuses at the "1000 Steps" dive. Did 6 dives at Klien Bonaire which were okay, not great, all were drift dives due to the current. Lost my knife at "Lost Knife" reef. Boat captain actually dove in to try to find it, but it was "lost." Got a photo of a Web Burr fish, which the dive shop manager said had not been seen since the hurricane. Did 6 off-site shore dives which were actually better dives than the ones at Klien Bonaire, but are a hassle because you lug all your gear both ways. I had forgotten how easy boat dives were. Did two night shore dives just north of Capt. Don's pier (south of the pier is not very good diving as mostly just sand) which were uneventful except for sighting some squid and a white "snake" eel. The dive around the inlet near town is not worth the time or effort. The large ships keep the viz at about 10-15.'
We rented a extended cab truck for the shore dives. The staff advised not to lock it, as there had been some people who will break the windows to get into the vehicle, and not to leave valuables in the truck. We had no problems; but a couple we met one night in town had some of their dive equipment stolen.
I may go back, but I am not sure. I like St. Lucia, Roatan, Cozumel and Cayman Brac better for similar diving.