I've had this bag for over 2 years and I travel many, many times per year (at least 1 road trip per month and 5-7 RT flights per year).  This is my go-to bag for the European carriers that I use frequently, many of whom have a smaller carry-on limit than US carriers.

The bag continues to function well.  I've had to put it in the hold a couple of times (on tiny planes) and taken it on a 10 day tour with only minor cosmetic damage still.  My only complaint is that, perhaps because of the size, if the contents are not heavy enough, it tends not to roll well and will catch and tip.  This is the first bag that I've purchased of this size, so I'm not sure if this is normal?