Rotten Tomatoes rates it very highly, but I wasn’t impressed with the trailer:
http://www.rottentomatoes.com/m/creed_2015/
I generally like to go to RT to get an idea of what critics think of a film, but I take it with a grain of salt. Any movies with a politically correct or generally leftist theme will be 'graded on a curve'. Main characters 'of color' tend to skew the ratings higher. For example: 'Selma' received a 99% positive rating from RT, while 'American Sniper' was in the mid 70's.
Anecdotal? Yes. But this pattern is a pretty consistent one at RT.