I have not watched anything else yet. As for Charlotte, it was ok for an opener but I don't know if they can manage in 13 episodes. Or they could not rush and go for 2 cour, but they don't seem to be into sequels.
Tbh I am still kinda uncommitted as to where the series is going - I don't have a clear img in my mind yet. But there certainly seems to be plenty of feedback of enthusiastic support or disappointed grumbling.
Yes - I just finished reading it a little while ago.
Also saw it yesterday as well ... must admit that it was kind of ... uninspiring? Sorta like eating oatmeal from a packet that is flavorless and too watery? It was there, but ... well ... that was about all there was to it.
I liked hearing the lovely OP and ED again though.