Well, I don't qualify as an "experienced" punter so take from this what you will...
Of the six meets I've had since end of Dec '14, only one has been an In-call. And, (thankfully) only one Out-call has been a B&S. [As her profile has since disappeared from AW, I haven't reviewed her]
This leaves four remaining Out-calls. Three with the same girl; the last one was also a Day Rate arrangement which worked out well, in terms of acceptable pricing and comfort/ cleanliness.
Main thing I'd suggest is to remain cool and collected if you're in a hotel environment. Inevitably, at some point you may feel mildly paranoid....
eg.1 - the man sitting opposite the lifts who kept staring at me soon after I'd checked in and was headed to the room. Security? Who on earth sits facing the lifts.....
eg.2 - the electronic key card that failed to open the door as I tried to usher in my WG. Coincidence? Fuckers on reception ! I then had to charm the Housekeeping girls, who were in proximity, to gain entrance with their master key.
See? Both unnecessary.
Condoms. Yes, if she's good she'll have - and prefer - her own supply. But always have your own as back-up. In case...
Is it likely that she won't show up? Difficult to anticipate this one.... how have the comms been? You should be able to gauge a WG's attitude through the pre-meet comms, ideally. But that's no guarantee of an appearance.
I like hotels as they're neutral territory - neither yours or hers. Hopefully less chance of a WG getting spooked.
Regarding a Plan B/ C.
By all means. But it isn't fair to pre-book those WGs in the eventuality that your 1st choice fails to materialise. Punters don't appreciate getting bumped for another booking, no point treating WGs in a similar fashion.
Not that I'm assuming this was your intention, you understand
Have a great punt