I inherited a Babylock serger a few years ago -- it was destined for the trash -- but my son checked it out -- the only thing wrong was a broken cutter -- $15 worth of parts and I love it. I serge the cut ends of my fabric before I put it in the washer. Since I prewash everything, it's really handy to have. I think it's a Model 5084 -- and yes, it's difficult to thread -- I usually call on my son (who used to work on sewing machines).