For enjoying the services of a sp most hotels are sp friendly except the Vogue and the "W" which require room keys to operate the elevators. Doable but a pain in the butt.
For working as a sp and using as a temporary incall I wouldn't have a clue.
can I assume the Hyatt is escort friendly? I got a great deal via priceline ($55 US/nite). I meet Emily Red in October at the Residence Inn on Peel and had zero problems but I did stay at the Novotel a few yrs back and had to meet the escort outside the hotel and we took the elevator up together.
I have visited clients at the W, Vogue and Novatel.
What I do is just got to the front desk and tell them that so and so in whatever room is expecting me. They call the room and then give me a guest key. No big deal. I dress conservatively so nobody knows who I am or what I am doing there. For all they know I am family
Stayed here twice by mistake. Both times, bed squeaked pretty badly. Many rooms are like cave: window is located so high up, there isn't much natural light. But the main thing is you need key card in the evening hours. Avoid. If you are on a budget, better deals are available.