I have only recently started to watch Chinese drama- Joy of Life is my 3rd one. Before I have been a fan of Korean dramas (and in my early years' Japanese dramas as well). What used to put me off was the high amount of episodes, long dialogs, dragging stories and often bad quality firming.
But after I have recently watched a few Chinese dramas again I am positively surprised about the overall improvement in the quality of Chinese dramas - often due to great adaptions from popular novels. And why wasting your brainpower to come up with mediocre stories if a novel has been proved to be great?! Joy of life is one of them.
PS. My first full review so apologies for not being too clear sometimes.

Story/plot: ★★★★★
The story is really creative and interesting - modern beliefs mixed with an ancient setting. Though it is quite politically loaded, it does not go into the usual “palace dramas” and keep a high notch of mystery and suspense throughout the plot. Due to the slight element of Fantasy/ScienceFiction, but not too much, one also cannot easily predict how the story may unfold in the end. On top of that though the main storyline is rather heavy the scriptwriter inserted many great jokes and funny scenes which make the viewers laugh out loud. They help to lose the tension so the mood does not stay too dark all the time. One minus point can be given to because of the complexity of the intrigues and sudden turn of directions it can be sometimes a bit difficult to follow. You need to understand that they are trying to pack an extremely long novel (over 4mn Chinese characters!!) into 3 seasons. But of far it is not that you are completely out of the picture.

Character development: ★★★★★
I love dramas that have good character development. That’s is what name then real. All characters in this drama, both lead as well as supporting have their depth. Throughout the episodes, viewers can clearly feel that each of them has their own motivation, their source of joy and sadness and the stories which make the way they are. Esp. lead character Fan Xian’s character development is phenomenal and one of the best I have seen.

Acting: ★★★★★
This drama has a great cast. From young talented actors to veteran stars, it gives what a drama fan desires. The excellent acting is what makes the characters come to life. Esp. Zhang Ruo Yun playing Fan Xian has exceeded my expectation (one of my favorite scenes is the dialog between FanXian and Zhuge in ep. 13 - it really gives you chills!) also the emperor, the family of FanXian, FanXian’s subordinates, the king and all the “evil characters”... just hats down to their acting!

Camera work and music: ★★★★★
Finally some words to the production. The quality of this drama is fantastic. There are not many fighting scenes, but those which are there are excellently shot (my favorite is the fight at the waterfall in ep.34). It also offers some of the most beautiful natural sceneries.
The music has been well composed with beautiful title and ending songs. Some of the background music is inserted so well to enforce the atmosphere e.g. the “rock song” for the coach and flag scene in ep. 37.

Summary: ★★★★★
All in all - this drama is one of the best ones I have seen on screen (and I have seen many). If you are new or old to Chinese drama please give this one a go. I really hope they will continue to shoot season 2 and 3 with the same cast as I cannot wait to see what happens next.
I would not rewatch this drama mainly because once the story is known it takes out the suspense element which is one best part of this drama. But I will sure rewatch some of the scenes.