Oh, isn't that nice! Love the old fashioned look - just charming!
Depending upon the model, your treadle could be perfect for quilting it, too. :)
Personally, I haven't got the necessary coordination to treadle and doodle designs at the same time. (walking & chewing gum are still borderline problematic for me, too ;) ) But, some people get good at it and LOVE the extra control they have. You might want to give it a try. :)