My firrst serger was a Juki that I used for making clothing for my 4 daughters. Then I decided I wanted one with the cover stitch and bought a Pfaff. Your need a 5 spool for the cover stitch. I make scrub tops occasionally and when I do I set them both up with different color threads and do assembly line sewing. I can sew a bunch quickly. I don't use mine daily but when I need it I really need it. I think everyone that sews should have a serger.