Overall I believe this was a good miniseries. While the character of Griselda Blanco was a bit too sympathetic compared to what she was like in real life, Vergara did an outstanding job in a lead dramatic role, and if she was typecast as Gloria Pritchett she broke from it in a strong way.
Supporting cast was very good, I felt there was good chemistry between Vergara and many of the others. Writing seemed very good, well-paced story.
I also very much liked the subtitles. This was a nice touch, and is rarely used on such a large scale. The Spanish language was needed to convey the mood and energy of the show, and it worked like a charm. Nicely done.
Only had a couple of problems with the series:
1) it painted Blanco in way too sympathetic of a light. Anyone who watched the groundbreaking 2006 documentary on the Miami Cocaine Wars called "Cocaine Cowboys" would know the real Blanco was far more vicious and cold than Vergara's portrayal. Also, I don't recall the real Blanco being a demagogue of sorts, with stirring, rebellious speeches to rouse her people to take on the rich whites who exploit them. Nice message but I don't think Blanco was like that.
2) The series was way too short. Only six episodes? There was so much to Blanco's life that you could have done four full seasons, easily. With flashbacks to her horrific childhood, particularly her upbringing by her vicious, abusive mother, Ana Restrepo. Season 1 could have been her NY days, season 2 Miami, season 3 in California (both as a dealer and her imprisonment, including her relationship with Charles Cosby), season 4 back in Colombia ending with her assassination. This was a very good, well-made series and I wanted to see more.
I give this 8/10 largely due to Vergara's chops in a dramatic, serious role, great writing for what this was (a miniseries), and great supporting cast.