1. Even the art and sound are pretty good, they're nothing amazing. You can easily enjoy what you see but when it comes to the story and when you think about it deeper... That was a poorly written. The Rainbow Pearls, the Dream Butterfly, it's just too basic, we needed creativity here!
2. The main characters are very boring, specially Towa. They don't have convincible ambitions, most of the episodes don't show us too much about their growth as characters. And the random adventures couldn't put much enjoyment to me.
3. Kirinmaru, Zero, Riku... All the villains and antagonists are pretty boring too. Nothing you can compare with Naraku, Kagura and the others, it's just anything with a "cool" design they can use as a villain. Nothing really exciting.
4. Yashahime let me thinking, we have some big holes in the script. Like Kaede knows Setsuna and Moroha a long ago, right? Kaede knows Miroku and Sango. And everyone knows Inuyasha and Kagome. So how can Moroha doesn't know about them? We have all the daddy issues of Towa and Setsuna with Sesshoumaru, Moroha knows this and NEVER questioned herself about her parents? In 24 episodes it was never mentioned. And, by far, this was so dirty with Inuyasha and his whole family story, when he could be genuinely happy with Kagome and their daughter, he got sealed in a dumb way. Alright, I doubt they can really explain this in another season.
5. And about the old characters/organizations too! Miroku looked so pathetic, we had just some seconds of Sango... Miroku, in the end of Inuyasha, was so happy with Sango and their family. We were robbed again. We got more devil slayers, but no time for them too. Does someone remembers Shippou? A shame, really.
I won't even talk about Sesshoumaru and Rin's relationship in this anime, that was so GROSS.
I don't really believe or care for scores in anime, I'm just putting 2 in overall because... Yeah, it feels right. Thats was my opinion, probably won't go watch the next season. Sorry for any mistakes, English isn't my native language!
