I just watched this series, started last night. I'm surprised how much I enjoyed it overall, much better than I expected. It's not going to win any prizes, but I'm having a tough time thinking of having a dull moment throughout. Even if there seems there's much story to tell (looks like half was adapted), I think it stopped in a good spot for my tastes. So in that regard, a satisfactory show to watch for me.

Haven't watched the Specials, which I assume are just a bunch of ecchi fanservice shorts (like those from Grisaia).