MIne is a Janome 2040. A serger is for pretty specific things IMO. Been sewing taffeta victorian skirts had to serge all the seams to prevent fraying. My Sapphire doesn't overcast well. Have made knit baby blankets, tablecloths and napkins. Serging gives a nice professional edged seam. Got one lower looper that is a bear to thread. I will tell you everything from how your thread cones are placed to the threading has to be done 100% right to work. Never misplace you book!