Sasami-san, is truly an underrated anime, in my opinion that is. I think Sasami-san is a... unique anime. Like the saying goes, "don't judge a book by its cover", Sasami-san's first episode might leave you with mixed emotions.
Story:
Sasami-san is not what it really seems when you first watch it. Eventually, you'll see the events that happen each have a deeper meaning than what you first think of it. It's plot is indeed strange, yet intriguing. A lot of what happens also has to do with Japanese mythology. Depending on how well you know Japan's history (or maybe the amount of anime you watch), this show may or may not be your cup of tea.
Art:
Honestly, I think Sasami-san's art is a bit strange...I haven't read the manga (or novel...whichever one was adapted) so I don't know if this is how the author intended the art to be. Despite this though, I do think that the art matches Sasami-san quite well. It might be because of its strange plot that the art matches it.
Sound:
Sasami-san's opening is one of my favorites of Winter 2013. As for the ending, I've never actually heard a legit version without people talking in the background so...can't really rate that. The seiyuu that plays Sasami does a pretty good job. I think it matches her really well.
Character:
In here, I'd say there are basically 5 main characters. First off, there's Sasami. I think her character development throughout the story is actually quite interesting to watch. She goes though many series of events that eventually builds up on her character. Then, there's her brother, Onii-chan. (That is what I will be referring him to as since that what's he's most commonly called on during the show). His character is quite plain. Most the time you'll only see him shouting out his love to Sasami. But there is the mystery of why he hides his face. Lastly, there is the Yagami sisters. Known as the "gods" they show somewhat of a character development throughout the show. I'd say the youngest of the 3, Tamma, has the least character development, as of now.
Enjoyment:
I won't lie. I wanted to drop Sasami-san after the first episode. But I decided to give it a few more chances. And for some reason, every week, I started looking forward to watching it. Maybe it was the weird plot that drew me, or maybe it was just simply because I'M weird, but I found that as I watched, I liked Sasami-san more and more.
Overall:
Overall, Sasami-san shows lots of promise, but it probably started off on the wrong foot for most people. If your bored, this anime should keep you entertained. Now, once again, I shall repeat "Don't judge a book by its cover!"