When I took my machine in right after Halloween for repair, I was never dreaming that it would be after the new year before she came home again. The screw which holds the bottom cover down became dislodged and fell. When it fell it got caught in the hook assembly which caused it to be damaged as well. So it has a new hook drive as well as a new cover. The new cover came with a new sewing platform. It is white instead of the clear of the original. It has a nifty clear window though to see the bobbin door. It came with a new seam guide as well. It sounds great -- all smooth and quiet. I feel like I should go and sew something, but it is cold and today was the first day back at school again. My tank is on empty. Maybe just one little block -- just to make sure everything is working perfectly.