If in working condition, they're great machines. If they have problems, they're a beast to repair. And not many people will touch them anymore due to the time it can take to get them working. If you really want it, make sure you test it. Make it do a straight stitch and zig zag and be sure to notice any issues. This model looks to be SS and ZZ only so it's apt to be working o.k. I've seen most of the problems with the machines that have the embroidery unit on the top that can add a whole level of headaches when it's locked up.