My wife, toddler and I stayed here for 8 nights and it was very nice and clean. The unit served its purpose, kitchen was well equipped, and there were some bonus items that were nice to have (Coolers, Wagon, Boogie board, etc for going down to the beach). The rooftop area was nice, quiet, and had multiple gas griddles and seating areas. The pool was also nice, but be aware, there is no shade up there.
It was nice spending evenings on the balcony after the little one went to bed. It was a good size and the chairs/table were comfortable to sit at for awhile.
This place is in the middle of Waikiki so be prepared for noise and crowds, but that's just a function of the location.
If you're looking for a place to stay in Waikiki, this is an excellent option.