I rent my LQS Gammill quite frequently - in fact I have it booked for this Wednesday. Like others, I had a training session first. I haven't tried the pantographs yet, but will one day. I don't think I could go back to pinning quilts now, lol. You don't say if you can FMQ already - if you can, then it'll be a breeze. If not, it'll take a little practice. Good luck!