I bought one to use when the bobbin winder on my machine was not working (it's since been fixed) and it was "ok". It does not work very well with large spools of thread though. I now use my Pfaff 1209 to wind bobbins, so that I don't have to unthread the Pfaff 2034 which makes it handy. The side winder now sits in a drawer and does not get used. I probably would not recommend it.