Are you flying between Osaka and Tokyo? If the ITM-NRT route on ANA is what'll get you to NRT, you might want to upgrade to SuperSeat for to try out their full flat "Super Style" First Class seats. ANA(and JAL) uses their international 744 on this sector so you'll be getting the planes that usually fly to the US. The flight time is not even an hour but it's always great up in front.