I've had quite a few carry-on's in my day, but none that have been as rad as this. This is the ideal bag for trips from 2-5 days. I've stuffed it full and still have been able to get it in the overhead on every flight. Even with boots, sneakers, jackets, and a weeks worth of clothes I've been able to avoid checking and even gate checking.
The split feature is key. I was on a recent trip and ended up on a Dash 8 (prop plane) for the last leg of the trip home. Instead of gate checking, I split the bag into 2 and tossed it into the overhead, to the astonishment of everyone around me. So great!
Also...you won't find a radder looking bag out there.
The non-"business guy" business traveler