Welcome!
I'll make it concise:
* It kind of depends on the girl if you can cum more than once and is something you should ask or discuss before choosing one. I'd assume for the most part they would be okay with it, especially if you cum like in 5 min in an hour session. Otherwise they should certainly be okay with cuddling etc after, kissing again might depend. Or you could ask for massage to finish.
* In Full service shops, generally speaking you should be able to see a lineup or have them come out to you one by one for a small intro. Otherwise you can book based on profile or photos if you think you like it. Or better yet, book based on positive reviews in these forums.
* A matter of discussion, if we getting into being pegged or whatnot I'd assume that's a special request. Most WL/ML will have a bit of their own routine anyway. If you want it vocalised, better ask the girl explicitly so she knows to order you to do things. For this, depending on your preferred language you might need to go certain shops/certain girls, otherwise it might be rather hilarious outcome.
* Should be fine to BYO, though the girl may want to inspect it prior to use.
* GFE mean Girl Friend Experience and does not indicate anything to do with the servo es she provides. It's more a 'type' of experience. Like if you want a softer more companion type experience or you want a PSE = Porn Star Experience, which is basically where she simulates porn behaviour. All dependent on what you want. May the PSE is better for your 'take control' wishes?
* Lastly, refer to the thread about paying by card. Cash is king.
As far as naming, it's probably more to do with anonymity than anything.
Happy punting,
- F0x