Toan is a fantastic host! He is thoughtful and very responsive to our questions/requests for help. His apartment is located right in the heart of Waikiki, which is literally 5-minute walk to all the popular restaurants and shops - super convenient! We appreciated that there was parking included; it certainly made our stay a lot better when we didn't have to stress about finding a place to park at night.
The only reason his place only gets a 4 star (4.5 to be fair) is because the furnitures and fixtures are a bit dated and need an upgrade. For example: the chairs were uncomfortable; the blinds did not close all the way; the couch and mattress cover were a little rough and dated, etc. It was an extremely windy week when we were there; we could hear the wind whistling through the window crack pretty loudly. We had to stuff some paper in the crack to reduce the noise.
Overall, overlook the few negatives, I would recommend you stay with Toan. He is a wonderful host and took care of us during our stay.