The is a pretty nice bag. It's spacious, and seems to be good quality. I like the large handles, and the flat bottom. It would be nice to have a padded laptop compartment -- there's not much structure inside. The pass-thru slot on the back is the only reason I'm returning it -- it's too narrow, and just barely clears the handle of my suitcase. Once I got it on, it took two people to wrestle it off. Obviously not something I want to be doing in an airport.
Addendum: The seller contacted me about the bag, and offered to send me a different bag since this one did not work. The seller Ecosusi seems really good, easy to contact, and helpful.