PROS: The apartment is huge, very cozy. We had a lot of comfort. The resort staff is very attentive. The kitchen is perfectly equipped, and after a long day, we loved relaxing in the bath before going to dinner at a nice restaurant in the area. The resort's location is excellent! On its street you have everything you need, it's very close to the beach and to several restaurants and shops. When in Waikiki we didn't even use the car, we walked everywhere.
CONS: Before booking I didn't pay to the additional service fee that you pay per day to the resort, the amount of $12, I only saw it after we booked. In our case it added $100 on top of the amount we had already paid to Airbnb, so pay attention to those extra fees.
There is no parking in this part of Waikiki :( only paid ones, and as it was a trip we took to rest, we chose to pay instead of looking for parking far from our hotel. It's very expensive, it was $40 a day for the car at the hotel, in the end we paid for parking during the week we stayed, the same total amount as the car we rented.
Finally, I HIGLY RECOMMEND IT! We were very happy in our week in Waikiki, we felt at home at Trevor's Airbnb!