Recently I saw a provider whom I really anticipated I would have a fantastic time with, but owing to circumstances beyond both our control, the session didn't quite live up to what I was hoping for; so I anticpate seeing her again under better conditions, and hope that she will become a keeper. (I'm waiting because she is a traveling gal and my city hasn't popped back up on her list yet.)
I don't recall any first dates in recent memory that weren't "do again-able", but obviously some are better than others, and with time and money constraints, I want to stick to the best overall.
In most cases, second, third, etc. dates do improve over the first, at least for a while, as we become more attuned to each other.