The first week's assignment does not seem that hard after having watched the lecture but I've yet to submit my assignment.
It's a free course and there's no harm in enrolling and giving it a shot. At very least, you'll be exposed to some new and interesting stuff. At best, you'll master some new and interesting stuff.
To me, this seems like the kind of stuff that'll make me "level-up" as a programmer so I'm pretty excited and enthusiastic right now.