Quilting is a 2-step process. For piecing you can probably use any machine, but for doing the actual quilting, it is MUCH more pleasant if there is a lot of room under the arm (this area is called the harp). I have an embroidery machine that also sews. It sews OK, but I would rather be embroidering on it and sewing on the other since I have to change threads when I am embroidering and some of the patterns take forever. I will piece on it if I have to (like when my machine is in the shop), but for most piecing and the actual quilting I use either the Janome 7700 or my Juki which is on a quilting frame.