In my experience, sometimes you really click with a service provider and sometimes you just don't. I have had some amazing moments that still leave me breathless when I think about them. Other experiences have me convinced I must be the worst lover ever.
What are your experiences? What do you do when the experience just leaves you limp from start to finish? Do you go back over and over to those you click with? Are you fearful it may be a one time thing and don't want to jinx it?