I bought a 26" Tin Lizzie and I'm so glad I went with this size. I can quilt a whole 22" section at a time. I've had it over a year now, and simply love the machine. The tech support I've had has been outstanding. They've really been wonderful when I've needed help with something. Another plus... there is a large group of ladies on yahoogroups who give advice and tips.
There are lots of brands to choose from, buy the machine you want the first time out, you won't be sorry.