I had Singer's top of the line serger (my 3rd serger) so I was an experienced "serger" & it was an absolute nightmare to thread. It was a 5 threader & the loopers were almost impossible to get to. I finally bit the bullet & traded it in on a Babylock with Jet Air auto threading & have never regretted my decision. Very pricey here in Canada but worth every nickel. Cannot imagine sewing without a serger.