We had a lovely stay at Island Surf Unit 302 despite a few big problems with our unit, including: no wifi access (owner was unable to resolve the issue during our stay); a broken screen door and sliding glass door which made accessing the lanai very difficult (owner indicated this would NOT be fixed anytime soon); and no hot water access/hot showers for the last two days of our stay (electrician came to fix it upon our checkout).
All that said, the unit was affordable, clean, pretty, safe, secure, quiet and located in the best spot in Kihei if you're looking for surf, beach access and walking access to many amazing spots for food and drink. That's why we chose to stay at Island Surf, and we fell with the location, but wish we did not have to deal with the above problems.