challenge mode worth it?

my friends and i have been wanting to start going for rankings and we thought that CM would be a fun idea since its so different from normal gameplay. Hows the competition to those that are playing it? we are nolifes so we would do whatever it takes to reach #1! hope to get along with fellow CMers (´・ω・`)

You're literally making this thread to provoke negative responses. What you said in previous threads about this topic makes that very clear.