The quick answer is yes. I can also feel when it's faked. The tell tale signs have already been spoken about, except for what happens mentally when a woman has an orgasm or is building up to one. That's more of an intuitive thing.
I've been punting irregularly since 2004 (I think) and in that time I've had only one female escort come for real out of about 7 or 8 visits. My average is sooooo much better outside the punting world though. lol
My personal record is 7 times in one day when I was 22. Nowadays, I can usually manage to come twice regularly, but had an incident about two weeks ago where I came 5 times through a 24 hour period. This is balanced by the days when I just couldn't be bothered and don't come at all.