We spent 5 nights at Trump Waikiki and were impressed with the quality and level of service. We were greeted with a refreshing drink and floral lei on arrival and taken to our room immediately (despite arriving at 9am). We had a deluxe ocean view room which was very spacious with a large kitchen and lounge area and a modern shower-room style bathroom.
The facilities are great, however we were disappointed with the pool area, being located on level 4. You couldn't see the beach from there - only the old outdated hotels directly opposite, where people sit on their balconies staring down at you. Unfortunately this hotel has no tropical or Hawaiian atmosphere to it, it really could be located in Anywhere, USA, and it would feel exactly the same. The beach is just a short walk across the road, but again, this part of the beach has none of the atmosphere you expect of Waikiki.
This is a good quality, good value hotel, but if you're after more of a "beachy" holiday, try Halekulani or Royal Hawaiian, merely for their better location and atmosphere.