I've been serging for over 30 years. Sadly, I had to give up the serger I had because I could no longer thread the lower looper. After doing some research, I decided to replace my serger with the 1034D. The first week I had it, I made over 30 fleece scarves and they came out perfectly. I must say that threading this machine is a breeze. The lower looper threads so easily. I haven't done the rolled hem yet, that will be next week; but I am hoping it is easy as it looks in the video that I found on You Tube. The instructional video that comes with the machine does not work on Windows 10. If you enjoy sewing and haven't yet stepped into serging, the 1034 D is a GREAT affordable basic machine. I am very happy that I purchased this machine.