Wondering about real world experiences with the (or similar) as a personal (underseat) item for international travel. Posted dimensions are 17.3H x 14.6W x 10.6D. I do know that the listed dimensions exceed some airlines' listed sizes (BA, for example). For an international flight with BA, I'd not worry since we fly business. I'm more thinking about flying within, say, Europe. There business class doesn't really have much more room for bags than coach.

Just wondering if folks have traveled with bags like this on smaller flights in foreign countries and generally been successful or run into issues.

I realize that this is just asking for anecdotes and fairly wide open, but just wanted to explore a bit.

Cheers.