I simply love this Baggallini ... if I needed more than one, I'd find many colors to choose from ... but I only need one and had to pick one color (went with the steel blue with green contrast edging).  I'd admired this style for a while (sister has & loves) and considered buying it, indulging (Amazon made this easy!) ... and have, and am happy I have.  It is roomy to come on the plane, can easily fit my laptop in there, a change of clothes and my purse so I don't have too much to carry (or anything to carry, as this rolls).  It fits easily over either a larger checked bag's or another (larger) carry-on's handle.  Being able to slip this bag over another's handle is a big plus; helps keep the bags together, ease 'carrying' multiple bags walking in & out from cars, buses, trains, planes (you get the picture).  This CAN fit under the airplane seat in front of me and the larger carry-on goes in the overhead compartment.  I've had no issue with the zippers and smile because the color makes me happy!