I've had a relationship with a provider and it was the most positive experience I've had in the hobby world. Quite simply, it was the best sex I've ever had in my entire life and I think it was all due to the chemistry between us. During our times together we became good friends as well.
Although I paid for each session, it was far below her usual rates and the clock was NEVER even looked at once our time together began. I think the reason our relationship worked so well was that we both acknowledged our relationship would never extend beyond what it was....a sexual relationship tied together with friendship and compatibility.