At one of my LQS they rent LA machines but first you have to take the gal's class. In the class she has you make zipper loaders so you can prepare your quilt for loading at home and then quickly zip it on the frame when you get there. I was signed up for the lessons but had a bad bout of bronchitis.
A sit-down set-up is more and more appealing to me. It is interesting that more and more companies are coming out with them. Thanks for the heads-up.