My fiancee and I stayed here for our wedding/honeymoon trip to Oahu. We are not wealthy, so it was a bit of a splurge for us, but turned out to be TOTALLY worth it.
The best thing I can say about the Trump Waikiki is the staff. I experienced nothing but the most friendly people working at this hotel. From the moment we arrived, we were treated like royalty. Upon checking in we were brought cold wash cloths and melon infused cold water, along with some nice look black and white leis. The bagman brought our luggage up and refused my help with anything.
Room cleaning services were wonderful. Room service was timely and delicious. Our room was a studio suite, which is among the simpler rooms the Trump has to offer. Even so, it was probably the nicest room I have stayed in at a hotel. Spacious, modern, clean. I couldn't have been happier.
The hotel does not have parking, only valet. The cost is something like $30/night. So if you are renting a car be prepared for that (in addition to tipping a valet quite a bit). But they were always friendly. We rented a car, and it was easy to just call down to have my car brought around, before going down to the lobby. So convenient.
This hotel thinks of everything. The bathroom has every amenity you can think of: obviously soap and shampoo, but also conditioner, shower caps, sewing kit, toothbrush, toothpaste, mouthwash, lotion, q-tips, nail files... You name it, the Trump already had it for you.
Our kitchenette was fully stocker with dishes and silverware. We were also pleased to find just about every extra we would have needed, had we decided to cook more: blender, hand mixer, rice cooker, toaster, an awesome coffee maker, pots, pans, and so much more. It was all neatly stored. After dirtying dishes, house keeping washed them and put them away for us each day.
Our room had an ocean view balcony (called a lanai in Hawaii). The view was absolutely beatiful. We also had a very nice view of the weekly fireworks shot off by another nearby hotel.
I could go on and on about this hotel. The bottom line for me is this: This hotel is worth every penny. If you want to be treated amazingly and feel like royalty for a week, stay at the Trump.