It's quirky, I love it.
I skipped second part and thought Olimar's the best character, but the addition of the other characters is well made and everyone has their fun moments.
Only thing I miss from Pikmin 1 and 2 is the ability to move the pikmin by joystick. It was so fun to move them around like that.
Story could be a bit longer, but the challenging modes are there and I want to play hardest difficulty again.