This is a good review. I agree with what you said.
Anyway, the original light novel is very good. Better than anime series.

It's rated a bit high, but still acceptable.
The one wich rated 5 is veery harsh. It shouldnt be that low.

I find it difficult for me to agree with you. I will rate it 7~8 instead of 5. It isnt that bad. Or maybe every person has different taste or fansy, cause I found sometimes even people rate some anime very good and I find it appears to be very bad.

This was the best anime I had ever watched! I hope there's going to have another new season. I think the story still havent end yet.

Well I dont think there would be any more like second season. Anyway, this anime is good, though the art work is a bit old/ not detail.

I really love this anime, especially the second season.