that you SLOW DOWN a little bit?

For starters...you have no reviews so we don't know anything about your "status" in this thing. Have you seen anyone before?
Have you spent any time on the newbie board?

If you haven't done either one, it's not a great start, but now you're here and with a limited time frame.
The best and only realistic thing to do is to start using the search function here. Find someone you're interested in that IS reviewed.
FORGET that Eros or BP even exists. Those are places that can be full of pitfalls to even the most seasoned players. Plan a simple session, two hours is a good start. Extended sessions like you mention are best shared with someone you know or are extremely comfortable with.

There's lots of questions you have, and apparently a lot you have to learn, but there are seasoned and helpful people here who may help guide you towards making the most of your trip.
But for now, go to the newbie board and read....read....read.

Best of luck to you.

DD

My suggestion would be to use the reviews available to you here to do your own research. Only you know exactly what you are looking for and exactly when you want it. I can tell you that if I was contemplating dropping thousands on a 12-18 hour appointment and a 5 star hotel, I would certainly not rely on what ever recs came back from an iso post on this board. Research!

After Dark does overnights and extended stays (though I haven't done one myself). Be prepared to open up the wallet, though, ten hours will be pricey no matter where you go.