I have a Tin Lizzie 18LS that I've quiltied on for almost 3 years. It had a few bugs to begin with. I have a great dealer who worked through the problems. My TL is working very well now. There is a yahoo group for the Tin Lizzie that has lots of members and good advice. It's important that you have a good dealer. If you have problems (and all machine makes have some problems), it's good to have someone to turn to.
Cynthia