Guess I'm a casual because I kind of lost interest after the U.S. was eliminated. Still caught parts of games, but up until then I was watching as much as I could. It really is a fast moving game. I'm obviously not a purist, so I didn't mind the hydration breaks. Could do without so much flopping. I mean, go ahead and go down to draw a free kick or whatever, but you don't need to act like you're dying...and then get right back up and keep playing.
One thing that was surprising to me is how quickly the games go. Like "holy crap, it's almost halftime". Not the endless stream of commercials that FB has. I'll be watching the next WC and if they expand further, I'm all for it.