I really like this game because it's comforting in some way. The graphics are pretty, the music is good, and the controls very precise.
It's not a masterpiece by any means, but it's pretty nice experience if you want to start playing the Mega Man series.
Also, it's probably the easiest one of the nes series.

Nobody cares about the story in these games, so i won't either, but the constant appearances of Proto Man and his relevance in the plot it's something i appreciate.