I spent a week here and enjoyed it. It's a good location for Kona, where you can walk down to the beach (10 mins) and restaurants (~25 mins to the closest locations). Eric has done a really good job on the interior; everything was really clean and well-maintained.
Eric was also fantastic in communicating; I had answers to every question I needed within a couple of hours at the most. Also, the neighbors are nice to chat with.
There is no A/C, and the condo is in tight quarters with everyone else, so you'll hear the neighbors in the evening and it can be a bit noisy at times. It's not loud like being next to a bar, but more like being in a busy restaurant. It's something to consider if you need absolute peace and quiet to sleep.
Overall I enjoyed my time here and would consider another visit.