OP music is pretty forgettable and my god, the left-right alternating thing is incredibly obnoxious. On the positive side, there was Rikka doing that twirly fingers thing at one point. But yeah, didn't like the OP much otherwise.
ED was much better in both music and visuals. Not going down as one of my favorites, but it was enjoyable to watch and listen to. The end card was very cute.
Anyway, as for the episode itself, it was a pretty good intro. The first episode didn't blow me away but it was very good and seems like its very much setting up for the show to do something next time. Lot's of Rikka being cute and amusing. I probably shouldn't have found
Yuuta whacking Rikka in the face repeatedly as amusing as I did.
Also very much enjoyed Kuzuha in her very little screentime. Nibutani's pretty cute too.
I've been stoked for this show ever since I first saw Rikka's character design, and the first PV proved that I was right to be excited about this and drastically increased my anticipation. I've been pretty much considering this show a lock for importing and this episode did nothing to hurt that. Looking forward to see where things go next time.