I bought the Pfaff Smarter C1100 last December, 2010 as a friend had one. I had lots of problems with the machine at first but discovered the LQS where I purchased the machine didn't take it out of the box to test or adjust it. After 4 trips back to the shop, this machine is wonderful and it's a workhorse! The differential feed works well and you don't need a walking foot.
I love the different stitches that are built into the machine. Again, if you want a good, basic quilting machine, this one is it.