Ah, the (in)famous OreImo that I've been hearing so much about.
Also, if it's an anime, someone will sub it eventually. Generally most subs are released a few days after they're aired in Japan. Some sites take advantage of "simulcasting", or subbing as the episode happens in Japan - like crunchyroll. Of course, high quality subbed episodes beat out that crap any time, anywhere.
As for me, I haven't seen any anime recently. Go figure. Most of the hogwash I see nowadays on the upcoming anime lists are generally not to my liking or are full of the harem/kawaii-desu factor.
In my opinion, yes. It is a very good anime, pantie shots aside. Very strong characterization, which is a pretty big rarity in most recent animes, and it has a lot of historical references as well.