Can't say much since I haven't watched it in a couple of seasons. After season two, it simply lost its purpose for me. One episode into season 3 and I simply didn't care about it any more. Frank Underwood is as real as it gets in politics, I'm sure.
I just finished season three....and I say you're missing out! Puts season 1 and 2 to bed. More well rounded, more importance on the supporting characters and one hell of a finale for the two main protagonists.
My fav character is Doug Stamper. And for some reason (and RIGHTLY SO) he had a lot of screen time in season 3, the guy steals the show without even talking.
The last year McLaren won a race they still had Lewis Frikkin Hamilton. ¯\_(ツ)_/¯