Sorry, yes I installed it and have made several bags with it and am very pleased with its performance, however I have only used it on 2 layers of 5/6 oz leather so far. I will try to sew max thickness for my machine and see how it does. It was very easy to install and set up using existing motor mount holes, and my belt from the clutch motor fit the new motor. I am fairly new at sewing, so I can’t give a professional review, but I can say that it is night and day difference from the clutch motor, I have so much control now going stitch by stitch. I wasn’t sure how I would like the Needle position sensor, but I am very pleased with it and use it almost the time. My machine has a speed reducer from the clutch motor, but I didn’t end up using it because I can go so slow without it.