I saw it today, and I liked it. It gives a very similar vibe to the original Rocky. Stallone slipped right back into his old punch-drunk Rocky character we all know and love perfectly, and he gives a very moving performance. A lot better than I expected. It is a bit slow to get going, but it isn't bad by any means, it focuses a lot on the characters and their emotions, and everything leads up to the ending really well. I got goosebumps on more than one occasion, such as the training montage, and right near the end of the fight especially (when you see the movie, you'll know what I mean).
Overall, I was pleasantly surprised, I came in thinking that I would like it, but it was much better than what I was expecting. I encourage everyone to go see it.
"Now lets start building some hurting bombs!"