The scroll saw was on backorder for 5 months, but worth the wait. The assembly was easy. This was my first scroll saw and It operated better than expected. The removal and installation of the pinned blade was very convenient as well as adjusting the tension. I used the rotary tool and the variable speed came very handy. I used it several times with the pinned blades and sanding blades. I wish I got this tool earlier and it would have saved me time and provided consistent results on repetitive wood projects.