Saw it for a matinee on Sunday and was glad I did. I really liked the fact that the fights where made to look real, taking advantage of Gina's mma training. There's no real music playing during them, and the sound effects weren't overdone.
The movie is sort of a action/ thriller combo since there are plenty of lying, double crosses, who-did-what-to-who-and why-was -that -important moments.
HOWEVER
The third act is a bit of a let down. The final fight is really anti-climatic.
As for Carano's acting, I almost feel there's a problem in saying how good or bad you find it. One of the things I learned about this movie is that they altered her voice. It may have just been the pitch, but it makes me wonder how it sounded originally. There may have been some things lost in the alteration.
(Below is a scene from the movie, and then an interview. See if you can tell what they did)
There's already the movement on the internet to get her to star as Wonder Woman in a movie.