I have a Tin Lizzie longarm and I love it. It is a heavy machine..like Mary stated, it has lots of bells and whistles. I have a Bernina sewing machine with the walking foot and stitch regulator but haven't tried quilting large quilts on it..just bow tucks bags and baby quilts. There is a yahoo group for Tin Lizzie, and I have seen a few on there for sale. As far as any problems with her, I have had none..she works great.
Blessings