The best thing about this place is the location! It is literally two short blocks from the Waikiki beach (right in front of the Duke's statue). It has a pletora of food venues all around and a 24-hr convenience store right in the same building that was indeed very convenient.
As many other reviewers mentioned, the parking is very limited. There are two separate parkings (one with roughly 20 slots and one with probably a few less, since 3 of them are reserved for a car rental company business located on the ground floor), each one under each tower (the two tower buildings are connected at the ground floor and it took us a while to realize there are two separate parking entrances, each facing one street). Both parkings are actually public parkings, so they are not reserved to building guests/residents. Anyone could use them by paying the parkimeter fare (the hourly fare is pricey, and it's $25 for 24hr). We thought we were doomed to pay for parking every night of our 9-night stay, since we went for the high-season (Christmas & New Year holidays), but if you're willing to walk 10-15 minutes -- and it could be a beautiful walk along the river -- we managed to find free street parking for 2/3 of our stay. So it wasn't too bad.
The building has a security office and elevators are activated only with the key fob. So this made us feel pretty safe.
The worst part about this place is that the windows have the worst insulation ever. And you'll hear all the hustle and bustle of Waikiki. I had to buy very good ear plugs, because the ones I had already were not sufficient. (ended up getting kids sport ear plugs and they worked perfectly for me). The place has a full kitchen, which is nice, with full-sized refrigerator. But the furniture is a bit weirdly placed, in the sense that the only dining table is on the balcony, so if you're unlucky like us and get some very rainy and cold days, you'll have to eat in bed if you want to stay inside.
Overall the place is a bit rundown (rusty bathtub), but I guess it's expected given the value and location.