I love this movie. I know it may deserve more a 6 or 7 than an 8, but I was really stunned when watching this movie in the theater. This movie is more than refreshing in the Rocky saga, it really reboots the saga in the best of ways. Of course, Rocky should have been a trainer in the previous film (Rocky Balboa). It made no sense that he would still try to fight at his age.
Therefore, this is the first film where Rocky is really a trainer (I don't count the horrible Rocky V). And it works beautifully. Also, the fact that Rocky is fighting his own battle at the same time (cancer) makes the story even more powerful, in a typical Rocky fashion.
The fight is incredible, in the way that it is the first time we get to see it filmed that way in the Rocky franchise. The camera is moving with the actors and stay and stay and stay, as if it was a character on its own. It's really an outstanding job.
A superb movie, with lots of emotions and technically top notch.