As far as the Season 4 episodes go, 'Chapter 51' is towards the better half. It is suspenseful, has a lot of bite, great character interaction and it doesn't feel like character development is going backwards (far from it) or the storytelling has screeched to a halt (the complete opposite) and one character in particular is well developed. And it is a great one and lightyears away from disgracing the season or 'House of Cards' in general, with almost everything being top notch. 'Chapter 51' is Season 4's penultimate episode. The only real reason to see Season 6 particularly is if you want to see every 'House of Cards' episode. Unfortunately, as has been said a few times before by me and frequently by a lot of fans, the show declined to 'feeling like a different show' after with a disappointing last two seasons.

With all the thirteen episodes making it up ranging from good to outstanding.

For me, Season 4 of 'House of Cards' was a very solid season and as good as the previous three seasons.

House of cards season 4 episode 12