I think if there is quite a bit of disillusioned feedbacks it's because people had high expectations for the match…
I just started this and I can guess some people will be disappointed by it. CY is a pro but it feels like the rest of the production doesn't match. But this drama works as a fun Wuxia romp without too much angst so anyone that didn't have high expectations will be okay with it.
PS: the actor is really handsome. First time I see him in a drama