Stayed for 5 nights and had a fantastic time. The apartment is far enough away from the main drag of Waikiki where you don't hear all of the partiers at night but close enough to where the beach is only a ~10 minute walk.
The apartment also came with 2 snorkels, 2 boogie boards, plenty of beach towels, and other beach gear so we didn't have to worry about renting anything. There's also a mini kitchenette with a hotplate and toaster which saved us a good amount of money as we were able to cook in the place a few times during our stay.
And Maurie himself was incredibly thorough, responsive, and accommodating to us. He was able to give us an early check in and late check out because of our travel schedule. Everything in the apartment was there as expected, and clean as a whistle when we arrived.
Will definitely stay here again next time we visit Waikiki.