Eriko's studio is a bit on the small side, but chances are you won't be spending much time indoors. The bathroom is a decent size. I wouldn't recommend using the portable electric stove since the smell of food will stick in your room for hours. Luckily, on the floor with the pool, there are gas BBQs available for use. The studio has a wonderful view of the canal and Diamond Head (so great to wake up to this in the morning).
Parking is actually $20/day but during my entire stay I was lucky enough to find parking along the canal and side streets (free parking!). I actually recommend renting a SmartCar from the rental place downstairs. The car is the perfect size for all those small spots no one else can fit in.
The location is great as well. I was able to walk down to Waikiki beach within 20 min.
All in all I had a great time and would definitely come back!