I both piece and quilt on my Juki. I have to take it on and off the frame, of course. But it does have a great walking foot, and about 9 1/2 inches under the harp. I wouldn't trade her for anything, though I hope someday to have a longarm. Even then, she will probably be my go-to piecing machine.
I like the Juki because she is all metal, no electronics to mess up. She's a straight stitch machine, but is just about indestructible. As long as you clean her and keep her well oiled, she will purr like a kitten.