my wife and I bought a small studio condo in Bonaire 10 years ago. This was before we retired, so we were able to go down twice a year for 2 weeks each time. The local condo association rented, maintained and did the work for us for a fee. the rentals paid almost all of the expenses.
Now, we have been retired for the past 6 years and we go to Bonaire for months a year-Jan/Feb and March. this is the "high season", so we lose a lot of good rentals, but we still love it. I would make this purchase again.
Owning property in Bonaire can be relatively easy if you buy the right place in the right resort. The rentals can be easy, moderate or difficult depending on the situation. We use VRBO and the local, in house rentals to make our unit almost totally pay for itself. The property values are increasing, the american dollar is the official currency, most people speak English and the diving, snorkeling, windsurfing and kite boarding are all great sports there. Bonaire is below the hurricane area and has few weather extremes.
I would agree with an earlier post-Bonaire is not for everyone. If you are interested, you should take an extended vacation there in order to really get the feel of the island, get to know who/what/when/where type of logistics. It is certainly not a third world country, but we often joke that it is 2.5.
All in all, I think we made a great investment. I don't think we will make a lot of profits, but it will not be a losing investment and we will have enjoyed our time there to a great extent. We love going there and have made a lot of good friends there. The local people are very nice, appreciate Americans and the tourist dollars. The government is not overly oppressive and neither are the costs of living. they are not low, but slightly higher food, electricity and water than what we pay in NC.
I love Bonaire and am glad that we purchased a place there. We continue to discover new dive sites, new places to explore and new opportunities every time we go. We have been 13 times and we each have over 600 dives on Bonaire. We are not tired of it and don't feel constrained by"having to go to Bonaire".