When I got my first treadle, I got it for decoration because I had a new Janome. (NOT a top of the line model, but new and I loved it)
Then I actaully sewed on it. Oh my. PRETTY stitches! A couple of months later, I found my W&W 8 treadle, and it sewed beautifully too. Long story short, I almost never use the Janome now....with five treadles in the house and several e-machines, all of them doing what I would use the Janome for, there's almost no need for it!! (I will still use it to machine applique once in awhile)