This one was sewn on a $90 White Classic. Basically walmart brand piece of crap. When you thread the bobbin and install it, it will never work right the first time. I have to do a test stitch, remove an cut out the tangles and crap, remove and reinstall the bobbin, and repeat. It takes about 8-10 tries to get it to work, but I never do anything differently. I just starts working all of the sudden. Oh well, got the job done in less than a day.
I was thoroughly frustrated. I invented a couple of new curse words that night. The good thing is there is an almost full bobbin in it right now, so I can do a couple more small projects before I have to go through the hassle again. If I really get into the DIY thing I might get a good one for Christmas or my b-day this year.