Attitude and (consistent) level of service. That’s really about it.
I go to Amsterdam a lot, and I go to De Wallen every day there. I have my pick of dozens of gorgeous women, maybe over a hundred depending on the time and day, and yet I tend to visit the same 5 or 6 over and over again. Why? Because a lot of girls there are just there to rip off tourists and offer very poor service and try to gouge you for as much money as they can. I definitely see girls who are more attractive to me physically than my regulars sometimes while I’m walking around, but my regulars always take good care of me. I’m hesitant to take the gamble on that mega babe because there’s probably a 50/50 chance that I’ll wind up getting a 3 minute shitty blowjob and a couple minutes of mechanical sex before being told time is almost up and I have to pay more if I want to keep going. Odds are, I’ll have to go find one of my regulars afterwards to get a proper session in anyway.
That’s all it is. The best sessions are the ones based on mutual respect. I always treat people with respect, and I expect the same. If you try to rip me off or jerk me around, I’m insulted because I’m being respectful and you’re treating me like you think I’m an idiot. Looks are important, of course, half the point of doing this stuff is being able to live out the fantasy of being with gorgeous women you’d probably never get to be with otherwise, but ultimately, I just want a nice girl that I can have a laidback, fun time with.