I don't have either one but I have used both. I like the sit down better because I do not like loading the quilt on the frame. I would have quilt tops piled up waiting for me to load them on the machine, I would dread that part and put it off. Now that I use Elmer's to baste I don't mind basting at all for a sit down machine. I am very happy with my Brother 1500 on two tables in the L configuration set up. I am interested in testing the new Gammill Allure sit down system.