My wife and I stayed at the Hyatt Regency Hotel in Waikiki on our honeymoon. I was so impressed with this hotel. It has 40 floors of rooms contained within the twin towers. We had a room that overlooked the pool area. It was a elegant room and very spacious. If you get a chance to stay here I would highly recommend asking for an ocean view. It would definitely be worth the extra money.
We loved the open atrium and the beautiful cascading waterfull inside the hotel. We grabbed some coffee and snacks and sat in this amazing setting. It's a great place to kick back and relax after a long day at the beach.
Upstairs there is an open bar area with two jacuzzis. The night we decided to use the jacuzzis there was a live performance of a local band. Add some pupu's (appetizers) to the scene and you have a party!
The Hyatt Regency has over 60 designer shops and some very nice restaurants within it's building too. It is directly across the street from Waikiki beach which was very convenient for us. I loved the fact that it was right in the middle of Waikiki, within walking distance to many of the local activities.
I can't wait to go back again, next time we will definitely upgrade to an ocean view!