- I really enjoy working out with Preston. I've never been one to work out in a gym before, so he makes sure I know how to use equipment & do exercises properly. He's smart and easy to talk to, and he changes the routines regularly, so it doesn't get boring. Perhaps most important for me, he is always ready to pick a different exercise if my messed up knees hurt - no other trainer I've worked with has ever been very good about that.