I've taken this on one trip so far.  It holds a TON of stuff.  In fact, there was so much room, I felt compelled to bring as much stuff as possible.  Rather poor logic considering I was 2 lbs short of having to pay extra.  At any rate, it is a solid piece that is very easy to drag around an airport. I got it in blue and it was the only one like it around.  The only thing is, I wish the Amazon logo was a bit smaller.