Video:

Only noticed one instance where there was pixelation. It actually appeared at what looked like a computer animated type scene.

Audio:

Only watched with Japanese audio. Didn't notice any problems with it.

Subtitle:

Didn't notice any grammer or spelling mistakes. Probably R1 rip. Gave english subs with Japense text underneath during opening song.

Comment:

In the main menu, your only option is to select a volume based on the US release which seemed like an extra step to me. You have to click a volume first, then you can hit play, etc. The first episode had real life scenes in the beginning, which I'm not used to (don't like it) and then went into the anime. The songs are very catchy. I definately want to buy the soundtrack. Gravitation has it's funny and romantic moments. I enjoyed watching it.. actually, I finished it in one sitting because I wanted to see what happens. The characters are unique. I was a bit disappointed with the ending and expected more from one of the main characters. I definately recommend this show if you like romance anime.