Great casting and acting. True story about femicide (and a rags to riches boxing career) conveyed intelligently, with great feeling for pacing; I often find jumps in time distracting but here it really adds to the story, and all of it is interesting enough. The last episode really got to me, again kudos for the brilliant pacing.
The only point of criticism for me might be that the actual end came a bit sudden (which is hard to explain without spoilers), but I'm not sure it matters, all in all this is just so incredibly well done, am really impressed.