I liked this.
However, this wasn't as funny as his previous two works; it was more commentary with gags here and there. The author's artwork has gotten a lot more crisp which I like.
I thought the characters were alright. Saki was presented in a way that made her personality believable and fit in with the whole premise of the story. She felt like a delinquent succubus and the themes of failure, living up to expectations, and self-improvement/realization were present in this manga just like in the author's previous works. Overall, I thought most of the characters other than Saki were pretty bland, but the gags and weird interactions were enough to keep me entertained.
I thought that the ending was a bit of a curveball and I personally think a more traditional romantic ending would have been better, but I didn't dislike it. Overall, I'd say this is worth reading as a bit of a side thing.