Well, I though my Serger was. Dream come truth, until the thread broke. I have been working on the machine for hours and still has not got it working. Once threading the four threads It will break or gather under the foot. I cannot keep the lower looper thread in the slot, and when threading it according to the instructions it gets too tie . If I thread it with out putting the thread in the proper place to keep it from tighting it slips out and again the thread just loop ion the feed dod. Like the Serger, but it’s not any use for me without working properly.