Way better than the first. Mega Man's movement is still a bit clunky but since the enemies are less bullshit than in the previous game it is far more manageable. The bosses are a complete joke though since you can just spam their weakness and they die in 2 seconds.
The E-Tanks were a welcome addition. On the other hand, I did not enjoy the instant-kill stuff like beams in the Quick Man stage and the jellyfish in the Bubble Man stage.
Another small issue I had with the game was that you get so many different powers but there's just not enough game to really try them all out for more than a few seconds. But at least you actually get to use them in the actual stages since most of them don't drain a full bar of energy in 5 seconds as was the case in the first game.
I don't plan to revisit this game anytime soon (if ever) but I did have a good time with it.