Niko's place was conveniently located. Parking was easy and free, which is a big plus in Waikiki. The sofa bed was a bit soft for my teenage son.
If you have an early bedtime, the music outside may disturb you, but it didn't bother me too much, as it seemed to end around 10pm.
The building is older, but it's well maintained clean. The unit itself is also clean. The carpet, however, was a bit older and stained, so bring slippers if you don't want to wear street shoes in the room.
The building is also secure since a key FOB is needed to access the floors. Both visitors and residents are respectful of the masking rules in the building and elevators. There were a few times I let the elevator pass because it was at capacity (2 people from separate families). I never had to wait too long for the next elevator. I was in the elevator by myself many times.
Overall, I had a great stay and would recommend this place to friends and family.