I'm probably in the minority here, but I love Reverse Bookings.
I typically put up Reverse Bookings at £240 for a 2 hour incall (this is in London).
There is never a shortage of replies. I'd estimate around 20 or so each time I do it.
I have had some of my best ever punts through Reverse Bookings and have met a couple of regulars that way too.
There is a small downside though. There will be some girls who simply bid on everything without reading your requirements in the booking information. In order to combat this, I always ask girls to state a (really) random word when they message me so I can be assured that they have read everything.
There are also some girls that will bid £240 when their 2 hour rates are lower e.g. £200. This pisses me off a tad. I won't respond to them.
Anyway, out of the 20 or so replies, I'd say about 5 will be great candidates.
It's also rather exciting in a way, never know what/who you'll end up with!
Happy punting,
Blazed