My insignificant 2 cents

Pros: beautiful landscapes, quite faithful to novel contents, acceptable use of CGI

Cons: Xu Zhu and fight with MRF appear too early, uncompelling plot, bad casting, mediocre choreography, lack chemistry between the casts, unflattering film texture(esp the filter), bad costume designs and some that I might missed.

In short, it is a mediocre adaptation that nothing stands out except getting attention for it's abysmal casting and depiction of the characters. Certain characters are tainted with unnecessary rendition(i.e.*cough*Duan Yu's urine.... *cough*). Although I don't enjoy this as much, in my POV it's not that flopped to get 3.5/10 in douban rating, but it's also not a good enough adaptation to stand up to such a big, big IP. If I were to recommend classic wuxia in the past 5 years, there are better works from Jin Yong IPs such as LOCH2017, HSDS2019 and for Gu Long IP HS2020.