This anime was great, not what I'd typically watch, but I'm glad I gave it a shot! Here's what I thought:
Story:
I think the story was okay, not the best, but still not horrible. It got a little confusing at times, especially about midway through the anime, but it was fine, I was still into it.
Art:
The art in this anime was amazing! I think that the characters were adorable, and the personality type matched the artstyle of each character as well.
Sound:
I think the voice actors portrayed the characters quite well, and the opening/closing to the anime were great as well. I actually added both of them to a playlist that I listen to from time to time.
Character:
I found the main character in this anime to be completely relatable, as he is a huge otaku, and basically a shut in. As for the other characters, there wasn't one that I disliked in the main cast of characters at least.
I thoroughly enjoyed this anime, it was hilarious at times, but also serious when it needed to be. I would more than likely rewatch this one at a later date.