I always book a room as 2 adults, otherwise you might get less towels in the room.

Unless you can hear from another SW who has worked there recently, it's always best to pop into hotels and check them out as workable before you book. Basic requirements:

• Reception is big enough that men won't be walking in the door and immediately have a member of staff in their face
• Lifts are easy to find so men can come in the door and walk straight there and not stand around looking lost
• Lifts must be operated without a keycard
• Room corridors must be open without a keycard (although if lifts are okay you could collect customers at the lift)

Additionally I prefer rooms which have a fridge, a safe, a spyhole, and some form of chain for the door.

You can check the basic requirements by walking into the hotel, getting in the lift and picking a floor at random and walking down like you're going to a room. You can also check for spyholes as you do this.

As for staff noticing, if it's a big hotel this is very unlikely unless you are seeing punters late at night. Once someone gets in the lift, reception won't have a clue where they are going. Cleaning staff in my experience generally don't care. As long as you don't disturb other guests, pay your bill and don't trash your room, you shouldn't have any problems.