The room was very clean and conveniently located in Waikiki. Enjoyed our short stay.
The "walk-up building" here refers to no elevators. It was a hassle to carry big bags up the three stairs, but not that big a deal.
Although the contact-less entry through a phone app was cool and seems safe. The concern was that in case you forgot your phone in the room and closed the door, this would shut you out and not sure how one would let you in. There isn't a main lobby area like a hotel. But we were mindful to carry our phones with us and make sure that they had enough charge to function when we got back.