I believe that Juki is set up for short arm quilting on that frame. If I'm not mistaken, I think that machine can also be used for piecing. I don't know about the other machines, but I think that's a steal for that Juki, and if you have the space for it, I think that'd be the machine to get. You can always buy an inexpensive machine later to dedicate to piecing if you want something other than what you are already using.