An update on internet charges: I wanted to use one hour of wireless while waiting for my car to the airport. It is 110 dirhan!!! for ONE hour! I talked them into letting me into a guest room near the lobby, where it is 18.75 dirhan. (My own room is quite a hike from the lobby.)
I suspect that policy has changed re breakfast. I got a printed message signed by the manager saying that I was invited to have continental breakfast in the lounge as a Diamond member. I spoke to the staff and to the manager of the Cafe Arabesque, and they are diligently enforcing this. Still, if people express a preference to eat in the cafe, perhaps they will change the policy again.
The property really is lovely. At night they set out large candles inside globes to light all the halls and stairs. It is very romantic to walk down the outside stairs to the bar shown on the Dubai Park Hyatt website, overlooking the river and the boats.