I don't have the machine you are talking about, but do have two Janome's. One has the free arm and it's the small one. A jem 760, I think. It's in it's case, so I'm not looking at it. I can exchange the feet and bobbins between it and the 6600. It's light enough to take to classes and retreats. I think that any Janome you get will do the trick. I have never heard of one that had serger system on it, but sounds good to me.