Ever Night has its flaws, but it ended up being one of my favorites anyway. The first thing that stands out about this drama is its beautiful cinematography and great action scenes; the fight choreography is exceptional, and the CGI is pretty solid overall. The main characters are interesting and likable, but flawed enough to be realistic. Ning Que, the protagonist, is more antihero than hero, shaped by his childhood trauma and his struggle to survive while also supporting his "maid," Sang Sang. He comes across as having a chip on his shoulder (with pretty good reason) and he is guarded around most of the other characters - Sang Sang being one of the few notable exceptions. She is such a gentle, cheerful young woman that it would be easy to forget what a difficult life she's led if not for her extreme practicality and her anxieties surrounding finances. Occasionally Sang Sang's emotions get the best of her, but no other character is as supportive or industrious as she is.

The relationship between Ning Que and Sang Sang is complex due to their unusual circumstances and there are multiple layers to their dynamic. She initially appears to be a maid who happens to be very fond of the person she serves, but it's quickly evident that their power dynamic is not quite that cut-and-dried. When he was a young child, he found her as a baby in a pile of corpses and took her in. They are a few years apart in age, and although he was obviously her caretaker in her younger years, it wasn't too long before she was carrying her own weight. He has made a living by killing bandits, while she has taken care of domestic chores and finances. There are subtle elements of caretaker-dependent and older brother-younger sister to their interactions at times, but overall they seem best described as platonic life partners for the first thirty or so episodes (with occasional, subtle hints of romantic feelings/attraction).

Later in the series, when Ning Que shows up with a love interest after a period of being away from home, they're forced to confront their true feelings and figure out what they really want. It's pretty obvious just by the fact that Sang Sang is the second lead which way Ning Que will lean (or even by the synopsis on this page), so I don't think this could be considered a spoiler. I watched this drama on Viki with comments on, so I know how divisive their relationship is. It is an upsetting development for some viewers who only see one aspect of Ning Que and Sang Sang's dynamic. Some viewers consider Ning Que to be too much of a father figure to Sang Sang to accept the turn their relationship takes, claiming (or implying) that it is incest. I personally don't agree with this viewpoint – but if you think the relationship could be squicky for you based on how I described it, and you believe that would interfere too much with your enjoyment of the series as a whole, you may want to give this one a pass. Just a heads up.

I rated this drama highly in large part because I really enjoyed most of the characters and the main relationship (I can forgive a lot if I become attached to the characters), however I did feel that there were some issues with the plot. The pacing is a bit uneven, and the exposition scenes are quite dull at times. Although there were a couple of exceptions, I felt that the antagonists were much too one-dimensional. The character arc for one of the main antagonists – Long Qing – particularly felt like a waste of time. Most of his scenes could have been left out and the result would have been the same. That was especially irritating given that his scenes were so tedious to watch. The last ten episodes are sluggish and feel like they could have been cut in half (at least). In fact, the same could be said for the series as a whole - but that has been true with almost any Chinese drama I've seen.

Another thing that I found off-putting is that, sometimes, some of the characters would know what's going on in a distant location without any apparent reason - as if they were watching it on television. When it was Fu Zi - who is generally considered the greatest cultivator in the world - I decided to just go with it. It didn't make sense, but whatever. When it was Fu Zi's disciples, I also just accepted it; they learned it from him, I guessed. But when it was still used with characters who had no background in cultivation, it became kind of aggravating. No matter what, it feels like lazy writing, but there really should be some brief explanation given for something like that. Similarly, there were many times when characters received news quicker than really seemed believable. Things like this were just minor annoyances, but they did pull me out of the viewing experience.

I've read some criticisms of Chen Feiyu (Arthur Chen)'s acting, but I didn't think he was a bad Ning Que overall. He was actually pretty expressive, though unevenly so; he was effective at conveying affection/infatuation and anger/aggression, but fell short in scenes that required him to express emotional anguish and physical pain. One thing that I found a bit annoying is that he frequently raises/moves his eyebrows in a way that kind of looks like they're spasming. Sometimes the eyebrow raise is effective, but more often it's not. That aside, I became attached to his character in spite of his considerable shortcomings, and some of that was due to Feiyu's charm and charisma. (Note: He won't be returning to the role in the second season due to scheduling conflicts; he will be replaced by Dylan Wang.)

I felt that Song Yiren (Ireine Song)'s acting was stronger; she was lively, sweet, and adorable as Sang Sang. Whatever the scene called for, she was almost always able to hit the right emotional notes. When I watched the trailer, the only thing I had reservations about was her character, so it's kind of ironic that she ended up being my favorite. I looked forward to her scenes most, and I'm very glad Song Yiren will be returning for a second season. There were many great supporting characters, and the other actors were quite good overall. I enjoyed the fact that several older characters had prominent roles in the story, and they also ended up being among the most interesting characters to watch (most notably Chin Shih Chieh as Yan Se and Ni Dahong as Wei Guangming).

So, tl;dr:

Pros – memorable characters, cute relationship, great action scenes, beautiful cinematography, lovely OST, mostly good CGI

Cons – one-dimensional antagonists, potentially squicky relationship (YMMV)

If you're into action/adventure and fantasy dramas, and you don't think that the main relationship would negatively impact your ability to enjoy the series, then definitely give this one a shot.