I know I'm still a newbie, and have nothing like the number of punts under my belt as being discussed here, but I can't say I've had a bad one yet. Yes, some have been better and more memorable than others, but on each occasion I've got out of it what I wanted at the time.
I'll admit (before anyone else says it) that I'm probably fairly easy to please, and easy going, and have probably been extremely lucky so far. Having said that, I'm also maximising my chances of success by not looking to book a huge number of different girls (variety really isn't what I'm after) - my 14 punts so far have involved just 5 different girls, so the majority of punts have been repeats to those that have already shown themselves to be worth visiting, and who suit what and who I'm looking for.
Perhaps also the reasons for punting play a part - for myself I'm looking to (re)gain some confidence, and get over an event in my past, and to just gain a bit more experience, rather than for the ultimate sexual experience with as many girls as I can.