I really like this carry on bag.  it is very lightweight and simple.  one large top opening allows you to configure your stuff however you want and it holds a lot. for a test drive I put one pair of jeans, a pair of pjs, some socks and underwear, cosmetic bag, 3 magazines, some meds, and I still had plenty of room for my raincoat and a few snacks.  the way the zipper is, you can just flip back the top and load away, no need to have to hold bag open while trying to put stuff in. this feature also allows you to see what's in there with a glance.  lining is nice fabric material that will not break down over time and get funky (like my lesportsac bags).  the two front zip pockets are nice, larger one has 3 mesh pockets, and smaller front one is simple.  carry handles and shoulder strap are comfortable and functional.  fits over handle of my rolling delsey suitcase with about 6" of handle left.  the only reason it isn't getting 5 stars is I wish it had protective small "feet" on the bottom so it doesn't have to sit directly on the floor getting dirty from foot traffic in airport, etc.  of note, my rolling delsey I have had for several years and has held up very well and still looks great, all zippers functional, etc.  I am hoping for the same quality from this super little tote.