The movie was fire. N it went a direction I didn't expect it to go. The way storyline flows from her back story and then links it back to her death is beautiful.
The only negative thing I have to say is that we didn't get more about Natasha's childhood. From when she was taken away. Which I feel would have added more to the story between her and the guy who turned her into the killer black widow. Even if it was small flashbacks.
But that's only a tiny negative compared to large amounts of positive energy I felt. Every move they made felt risky which for me added to it even more so.