It'll totally depend on the escort, porn star or not ymmv.
It should be just like any other punt, because that's what it is, some are friendly/normal and others have delusions of grandeur.
What you should have is a little extra anticipation of the punt and afterwards whenever you see one of her scenes a smug wee "been there, done that" smile to yourself. Only you can decide if that is worth the extra she charges over and above another SP of similar stature (not sure that's the word I'm looking for, but age, build, services, attractiveness in your opinion). Also depends on what you are looking for services wise. Many report porn stars as quite vanilla, not offering OWO ect due to testing regs for porn. Others may have a 2 tier GFE or PSE pricing structure, so worth checking that what you want is available.
At the end of the day if the money isn't going to affect you that much,(i.e. if you have this punt, there will be no more for 6 months) then I'd say go for it and hopefully enjoy. What's going to be the bigger regret in years to come, wasting money on a punt that isn't as fantastic as you'd like it to be (it'll probably be pretty damn good) or not taking the chance when you had it.