I have the new 830 and really like it -- no regrets about that purchase at all. I only had to buy new bobbins -- all the old feet can be used on this machine. My dealer "stitches out" each machine he sells. He makes sure that all stitches sew properly and that there are no problems with the machine before he lets it go out the door. Some of these machines are fussy about multi-tasking. Mine only likes to perform on function at a time -- don't try to thread it and open the bobbin case at the same time. Let it complete one task before starting the next one.