I'm writing a review in honour of the amazing acting and plot delivered in this drama. This drama reminds me of Nirvana in Fire. It's a complex story with fast moving scenes and plot developments, however the story is delivered with excellent acting and thoughtful pacing. That conveys the sense of careful deliberation by the decision makers in the story, underpinning the importance of every action and decision undertaken during each scene. The two main actors are amazing. This is an excellent drama.
“我要为剧中出色的演技和精妙的情节处理专门写个剧评。这部剧让我想到了《琅琊榜》。这个故事相当复杂,场景切换和情节发展都很快,但在精彩的表演和恰当的节奏之下,故事被很好地呈现了出来。剧集传递出了故事中决策者们步步为营之感,为每个场景中的每一个举动和决定都做好了重要铺垫。两位主角也很赞。这是部精彩的好剧。”

@minmccae:
Wow! Just got done watching ep 1 since I'm watching from Los Angeles California. This drama is so intense already. If they keep this up all through the end, this will indeed be the greatest C-drama historical piece that I've watched this year. Jackson Yi had grown up!! He is so good and intense in this one. Last year I've watched The Song of Phoenix and I liked him there but he was only a kid. Now seeing him as lead in a major piece, with such intense role-- I am loving him in this. The subbers at Viki are so much better than anywhere else!! Thank you guys.
我在加州洛杉矶,所以才刚刚看完第一集。这部剧的节奏现在已经很紧凑了。如果按照这样的打开方式收尾的话,这绝对会是我今年看过的最棒的一部中国古装剧。易烊千玺长大了!他在这部剧中表现得太好了,情感表达也很充分。去年我看了《思美人》,我也很喜欢那部剧里的他,不过他那时还是个孩子。现在他在这样一部大剧中担纲主角,还饰演如此强大的角色 —— 我爱上这部剧中的他了。Viki的字幕组比其他视频网站的要好多了!谢谢字幕组的各位!

而在国外论坛Soompi上,各路歪果仁网友为了能更好地看懂这部剧,开始恶补起了各种中国文化知识:

第一集的故事时间开始于9点至10点之间(现代24小时制)。这部剧要讲述的是长安城24小时之内所发生的事。
唐朝所使用的计时法将一天分为12个时辰,再分“初”、“正”两格,共分为24小时。
在第1集开头,日晷报时为“巳初”(9点-10点),而到了第12集,日晷指在了“未正”(14点-15点)的位置。

