Any suggestions?

Ones that  you have to go in side to get to the room. Motels where the room is on the out side is not good. And 4 or 5 star hotels  are all  ok for the most part.

What about being harrassed by the hotel staff going into a hotel, especially if you're not sure which room to go to?  I would think that a room on the outside would be better because of less of a risk getting hassled by hotel staff and/or security.

Which hotel chains(I guess that's the correct way of saying it) are the best as far as respecting privacy (providers coming up to see you, not prying about why they're there, etc.)?

Yeah. I see your point there but us providers have always been just a little shaky about seeing guys in motels with room on out side for outcall.Where I'm located there has been a lot LE set ups and busts in those types of  places.For incall most girls I know don't like rooms on the out side because everyone can see the trafic comming and going all day. And I think it is terrible if hotel staff bothers a guy if he walks into a hotel to go to a room. It's none of their business  what room you are visiting in a hotel. And the same goes  for providers going to see clients on outcalls. I never get bothered because I dress like a professional and I carry a   business case that looks like I'm going to a business meeting. If a provider dresses right for an outcall then she should have no problem going into a hotel. I know I don't.