I think it's not for everyone. I pretty like this specials, it was a warm feeling and I was happy to see again some characters and more background. But the 9 first episodes are really bonuses, without battle and most episodes are 2 story, without link between them. But if you want to see the futur season 2, you have to see the last episode, it's the direct sequel of the season 2, so even if you don't like chill OAV, make sure to watch the last episode ! Small spoilers : Some stories you can watch in these specials : the past of Ouken, Despa and Desha(my favorite story), some background with Miranjo or Bosse etc...