I have 6 treadles, and one handcrank(Along with 5 other machines)
Aside from sewing at my quilting group, I don't use electric sewing machines - I do virtually all of my sewing on a treadle, I find it very relaxing and when you get used to it(I sewed 6 hours straight) it is very easy.
I'm a member of Treadleon.net (their list) and I love it - all of you who are looking for a treadle, or want information on a treadle, join the list!