Nirvana in Fire took a few episodes to grab me, and I was definitely hesitant to start such a long series. But, in the end, it turned out to be a captivating story with interesting, tense character dynamics and a brilliantly dramatic overarching conflict.

ACTING
There's not really much I can say here - all the performances are quite good, with a special commendation to those who play Changsu's retainers, Eunuch Gao, The Emperor, and Prince Jingyan. The interaction between The Emperor and Jingyan especially feels very natural and portrays the complex dynamic between absolute ruler and son quite well.

MUSIC
The music took a while to grow on me, but like the series, it's a bit of a slow burn. The OST is well-placed in each episode and rarely feels awkward, while the opening and ending are both references to some of the underlying themes in the show (with the butterfly prevalent in the opening being a particularly poignant double-metaphor). I rated the music slightly less for those few times that the songs feel a bit overplayed.

STORY
The story and characters - these are the real reason to watch Nirvana in Fire. The plot could be roughly broken down into several arcs in which tie together in Mei Changsu's ultimate "revenge" plot. I won't go into details here for risk of spoilers, but each arc roughly involves a new event or circumstance that at least one major actor - Changsu being the most common - tries to take advantage of. The other characters in advisory positions react and attempt to put out fires (sometimes literally) while slowly shifting the politics of the court one way or the other.
All of the plotting one way or the other eventually comes down to The Emperor. Nirvana in Fire portrays the role between various court actors and The Emperor better than any other series I've seen. How The Emperor will react, what he wishes, who he'll be suspicious of - everyone who plays the game of the court ultimately has their focus on its head. And given the goals of each of the characters - which often conflict with The Emperor's desires - subtly changing the atmosphere by planning events days in advance can be essential to ensuring a plan succeeds.

SUMMARY
From start-to-finish, Nirvana in Fire is a stellar drama that combines a driven revenge story with complex character dynamics and courtly politics to create a masterpiece of intrigue and planning.