Happo is always a good day, especially if you can get there early. Had some great first runs on the speedy groomers that were chopped up by the end of the day. The visibility was pretty shot at some times and even heading up to the top didn't help things and in fact made it worse, and not much better down the bottom.
Being a Saturday there were loads of people as were expected, meaning the runs got chopped up.
Happo is gigantic...one of the biggest in Japan. That said, it is not hard to find a lot of varied terrain there. The groomers are great, but could be a bit wider (considering the size of the resort...). Only problem with groomers are the crowds...happo attracts lots of people and it can get crowded fast...be careful when skiing fast!
The off-piste is great...nice tree runs and looks like plenty of other treasures around as well..