Differences? More spacious seat, lounge access, dedicated check in desks come to mind.

The website has menus published so you'll know exactly what they'll be serving.
https://www.ana.co.jp/en/jp/guide/fl...rvice/py/meal/

I believe bulkhead rows don't get footrests but still come with legrests like other seats. Then again, you get the inherent benefit of a bulkhead row, which means nobody reclining directly ahead of you.