I bought this primarily because my previous carry-on did not have the four spinning wheels and was much harder to maneuver than my husband's piece that did. And this is so lightweight compared to other models of a similar size -- which helps me lift it into the storage area above my seat. A perfect size since I travel quite a bit and prefer carry-on luggage, because obviously stuff is less likely to get lost. (I have learned to travel is this weekender size even for a trip 18 days long). Since the style of this model is top-opening, rather than middle-opening, I have now switched to the roll method for clothing. You have to dig a little deeper to find things sometimes, but I think the total volume of what you can take is about the same as in other models. Maybe a little bit less. Easily accommodates the TSA lock I purchased separately.