I have the Large Tuto tote for my Janome MC 6600P, but I am afraid if anything happened to it that I would be very upset, so it stays home except for travel to and from for servicing. It is heavy and I am afraid of dropping it . My travel machines are my featherweight or my Europro. The Europro is small but has a few stitches so works fine for those trips to quilt with friends. My Viking also fits the same tote - but the embroidery attachment does not fit, so it stays home too. My travel machine has a tote I got at Joann's years ago. It was on clearance and is still going strong. I got one for my sister and hers is still holding up too. The one I got for her came with a case on top for all those extras you need, it straps to the top which is very convenient.
A friend of mine used the collapsable box - she uses it for a small Brother machine. It works for her.