I must say this is better than a lot of western series of similar genre. This drama is very fast paced, so much happening in every episode and I didn't feel bored any moment. I liked the concept and the mix of themes although the plot being predictable many times the development can keep us interested.
The acting is good but unfortunately the dubbing drag the dramatic moments down taking away most of its weight.
In terms of acting the highlight to me is Dai Xu, he impressed me a lot! The first I saw him was on A Dream of Splendor where he plays a dumb man-child and seeing he on Last one Standing just blowed my mind, he is a excellent actor. And his character is far more interesting than the ML because of the duality. ML is just plain good, lawful good and this become irritating sometimes. I prefer more ambiguous characters.

Things that I found problematic
- the unnecessary repetition of the same flashbacks over and over
- the romance was cringy and seemed forced. I didn't ship ML and FL even for a second LOL
- they spent 4 months eating few little pieces of that biscuit a day and still there was almost any fight for food and anyone seemed physically affect by all this time of malnutrition. The hungry factor and competition for food is one of the most powerful causes of human degradation. Here I think it was underused.
- well, this is a cdrama so because of government regulamentations of course it will have moral lessons on good and evil and how the good always prevail, how human beings are inherently good and the humanity has flaws but is amazing because of love and hope and yada yada yada
- the CGI is funny XD

My conclusion:
Its sad to see how this drama is so little-known and altough the flaws it is very entertaining and a total watch worthy for the sci-fi, survival, "zombie" fans.