I have two, one with white thread and one with black thread. I make a lot of church quilts to go overseas and since the quilts are very practical, for example, 8 inch squares, I use my sergers for those. The nice thing about it, when I have three threads on the serger my seams are about 1/4 inch. I have also used the serger on quilts that I know are going to be washed alot. Like Linus quilts or children's quilts. They use a lot of thread but for quilts that don't have a lot of seams, they work very well. On my quilts that I make for myself that I know aren't going to be washed fifty million times, I use my regular machine. Hope this helps