I received the SuperMax 19-38 "open end" drum sander about 3 weeks ago before starting my latest kitchen. I ordered it through Acme Tools, shipping was great, machine was packaged very well and arrived on time. I have not used the Jet/Performax sanders, but have seen them in local stores, this machine by far surpasses them in size and how it's machined. This unit is extremely heavy and impressive. I was a little leary in the 1 3/4 hp motor and how it would handle larger jobs, but it handles them very well and I have never felt the motor bog down (even when accidentally taking off too much in a pass). I have sanded around 30 kitchen cabinet doors so far and an 8'x2' White Oak top and couldn't be more pleased. The White Oak top took multiple passes, but was completely dead flat and ready for finish sanding. The cabinet doors looked great, minimal touch up sanding and saved tons of time. I have been through 3 rolls of sandpaper so far and have tried multiple grits 80/120/150 and have found that I liked the 120 grit then moving onto 150 grit with an orbital, with the orbital it's just cleaning up any scratches from cross grain. I have no complaints on this machine at all, 5 stars, completely satisfied and wouldn't change anything on it.