I saw this on Friday.
If you like Clint Eastwood, you will love this movie. And by far, this is the most meaningful movie he's done. I am still thinking about it 3 days after seeing it.
Now mind you, it is rated R so don't take the kids. There's lots of swearing and racial slurs and moderate violence. But it's a great movie with a great story and and great acting by Eastwood. It's amazing what he can convey with a grunt.
Don't let the trailer fool you. It's not about a grumpy old man out to kill gang bangers. It's about a grumpy old man reflecting on his life and how the world has changed and the changes he goes through that positively changes the people around him and himself.
I don't want to say more than that as I may spoil it.
5 stars IMO.