I know this is an old topic but I just watched through all of Season 4 finally now that it's on Netflix. As one of you stated this show is definetely better to binge. I don't think I'd have kept up with this season on a weekly basis. It felt less engaging and interesting than the previous 3. I feel part of the problem is it is trying to split to little time between to many storylines. You have the Jimmy story, the Mike story, the Gus story, the Kim story, and now the Nacho/Salamanca story. That's a lot of different plots to keep up with in an hour episode.
Nacho was also one of my favorite characters and was loving what was going on at the start of this season but it just disappears. He's hardly in the show after the first few episodes other than to just stand there and make faces.
Jimmy is easily the least interesting in this season as somebody said. Kim is getting annoying as well. How is she still putting up with his bullshit? Though the end of the season dropped hints she is about done.
Mike, as usual, is the best part. I love how he just does what he wants for the most part no matter what anyone, including Gus, say.