Japan seems to be hot destination these days. I had some friends go there for the Cherry Blossom fest a few weeks ago and another going next month.
I researched the hell out of a Euro spec approved carry-on. There are so many out there, it's hard to find one that meets the requirements for all airlines.
Away was highly recommended by a friend, but it's pricey. I also don't really care about the built in charger and already travel with an extra battery. The reviews are great though and it meets all the dimension requirements.