I have one, newer with pvc "pipes", first FMQ project was a quilt runner. worked ok, but the Kenmore machine has a small space, so by end of runner, I was OUT of room! My new HV Sapphire 835 has 9" of room, so I can quilt more, before having to "scroll forward".
I really have to watch that I don't over tighten the layers, but I love the frame. In a future world, I'll have more room and build a table at the right height for me to use, and I'll have lot's of "side to side" room! Until then, I store it in the closet, waiting for the next project worth setting up the "door" table for! And clearing all breakables away from the end of the table!