When considering my options I look multiple issues.
Since I live with relatives when I am in both Phoenix and Las Vegas my options a little limited.
Out Call is always to a 3 star or better location. In Vegas I also consider off strip locations if to hotels considered business hotels. Mostly my requests are always 3 star are better. In many hotels the elevator has security or requires room key so usually we meet at a easy to find place in/near lobby. I have declined visits to places that are low quality.
In Call I always get location in a well known Strip/Near Strip resort or business type hotel. I make sure parking is easy or valet or cab drop is easy. I make sure elevator is open public. I try make it as easy as possible for client to get to room with minimum interaction. I don't smoke and always get non smoking room, but even sometimes I think they stink. Usually I bring a few candles or even small bottle of light smelling air freshener. I find I can almost always use Groupon to get good discounted room.
I don't use or go to any location that has doors facing parking lot. I prefer locations even where doors don't face courtyard. I think any clean, safe location can be fine as long as it affords a little privacy when getting to room. I don't dress like a hooker when in public, so I easily walk past the past front desk most anywhere. Usually I look like any other young Asian woman on holiday. Sometimes I will even carry a store brand plastic bag with my things inside it, to look like I am a guest and have been shopping.
Here is so different. In Asia in any decent hotel, every single girl is considered hooker visit. You must leave ID at desk and sign in. They call room to make sure your expected. They know exactly what is going on. You visit client, then when done go to desk get ID back. They call room make sure guest is ok and happy and you did not steal/scam him/kill him/rob him. Once he answer and say all is fine you sign out and they give you ID back. You have no choice in this.
Christine