Well it was a pretty good anime adaptation to the light novel. But sadly it caught up to the light novel. The second season of IS was great but, had a lot of filler moments and episodes. Some episodes are meant to be very funny and has nothing to do with the story which disappoints. Harem moments within the show don't last, and certain character moments are quite lacking. Overall it's an average, good adaptation to a light novel series. Plus it has it's first video game to come out and is some what popular within Japan.
Overall 8/10