Bought to shred summer squash, returned it hours later. Was shredding some overgrown yellow squash which had somewhat hard skins, and after the first two, the shaft became lodged in the housing and would no longer rotate and could not be removed. I think many of the problems with this attachment start with the fact that the blades are extremely dull. I have butter knives that are sharper. Other people have reported that vegetables are turned to mush rather than sliced -- dull blades. Also, others report stress cracks and broken parts, probably from having to apply more pressure to cut due to the dull blades. This would probably be a decent attachment if the blades were sharp enough to actually cut. I returned mine to Bed, Bath & Beyond, who took it back with no problems and purchased a manual shredder with nice, sharp blades for about $20 less.