life - Identifying a hotel in Shanghai

The other day it was a hit again. "Shall we meet in the Marriot hotel?" asked a person who wanted to meet me.
I had not clue where to go to. Hotels are emerging in this city like mushrooms and as a Shanghai veteran people just think you know all these five- and fourstar hotels. Of course, I could not admit I did not know where this person wanted to meet, so I used a trick. "What Marriot Hotel?" I asked.
Even if there would be only one Marriot Hotel, this person would possibly not know and certainly would not be willing to admit that. So my days was saved. Later I looked it up at the internet: there are at least two Marriot Hotels. The Holiday Inn has already three, the Radisson two. And the Regal has two, but one was not even at my list. Even hotel-websites can make mistakes.
The upsetting part is: while hundreds of rooms are added regularly to this city's hospitality industry the rates are going up. This city is getting even crazier than it was.