I just ordered the 17"...will be here on Monday. I, as most people, bought this machine sight unseen. I ordered the "classroom" model. Chuck Bailey stands behind his products 100%. It is very much like a larger version of a home machine so I think it will be easy for me to maintain on my own. I've heard nothing but good about the machines and the company. Get the biggest size you can afford! I already have a grace frame and ordered mine with the stitch regulator.