I stayed here in July 2009 with my husband. The hotel had just opened, so we received a screaming good deal on the room. It was a partial ocean view room for only $99/night. The views from the hotel are gorgeous, the grounds were well maintained and we found the staff to be quite helpful and friendly.
The rooms are beautiful. The colors (dark woods for the furniture and turquoise and white for the decorations) were warm and welcoming, the bed was to die for and the walk-in rain shower was wonderful.
The beach is not usable in front of the hotel, but a short walk to the left or right will get you to beautiful, sandy beaches.
We ate at the restaurant, Red Salt, one night, and found it to be delicious! Since it had just opened, there were only 2 other couples in the restaurant, so we received wonderful service.
Even though some people seem to think the pool is too small, my husband and I thought it was adequate for the size of the place. But then, we tend to like the not as invasive style hotels/mega resorts. The hotel is located a very short walk away from the Poipu Beach.
My only drawback about this hotel is the location. My husband and I preferred the northern part of Kauai, up by Hanalei. This hotel is quite isolated and a fairly tiring drive to get to the northern parts of the island. Poipu seemed like the area to go if you just want to stay in your mega resort, and not explore too many parts of Kauai. If you want to explore and want more things to do, I recommend staying closer to Lihue (at the Hilton) or up by Hanalei.