I recently bought one of these to upgrade an old Craftsman I picked up to explore an interest scroll saw work. I wish I had the Craftsman back! Changing blades, especially spiral blades, is ridiculously difficult. And, because of the fixed upper arm and the resulting minimal clearance, threading a blade through a hole is difficult in the extreme, often damaging smaller blades, if the work piece is larger than a 1/2" thick and wider than about 6" total width. I would certainly advise a friend against buying this saw.