You might want to see what system they use for loading their quilts. It may not be an issue if you just want to baste, but if you actually want to quilt- will you be able to unload and reload it? Our store uses a zipper system, so you can quilt in short bursts (they rent 3 hour blocks), but another basically requires you to rent the machine until you are done, paying for the time the quilt "sits" (though not hourly).