My dh took me to the show in Kansas (8 hour drive) I have never been to a show like this - it was wonderful. We spent 5 hours looking and "trying" all of the long arms. I have decided on which one I'm saving my $ for. It is the A1. The rep was so helpful and everyone at their booth was so knowledgeable. The machine is so quiet and smooth. I'm a small person and the ergonomic handles made it such a breeze to operate. My husband was so impressed with the frame - and you can lower it and raise it with a touch of a button.
So glad we went and tried them all. Everyone here was so helpful in giving me such good pointers in what to look for and what to ask. It really is a personal preference.