This show is the slowest of burns. It takes 5 seasons to give Jimmy and Kim the character development that would normally take place in only half of a season. I am still in to the end, but I have to admit its getting tiring seeing the characters doing basically the same stuff every week.
I'm caught up and I agree with this. Full disclosure, I was never that hot on Breaking Bad either, and this show is written in a similar way. Fundamentally though, I think Jimmy is the same person as he was at the start of the show. He's more unhinged, more sure of himself, but he's still the guy who takes shortcuts, doesn't consider how his actions affect other people and when all is said and done he has screwed them over, however good his intentions. He's a well intentioned, fuck-up scam artist. The only real change that I see is that he went from wanting to please his brother, to hating him, but in practice he acts the same way.
As for Chuck, I'm guessing people hate him, but I think he was right to not hire Jimmy. His law firm clearly had high standards, they shouldn't hire him because of nepotism (sidenote, I don't buy that Davis&Main would ever hire him). Chuck had already given him enough chances at that point, I sure as shit wouldn't have trusted Jimmy in his shoes. And guess what:
he was right. Yes, tricking Jimmy into saying that stuff on tape was a giant dick move. Setting him up for him to come there and destroy it even more so. But again, Jimmy did all that shit. He's the bigger asshole in my book, good intentions don't mean squat. Chuck was annoying as hell though so I'm glad they finally got rid of him, the whole electricity allergy got old fast.
All I have to say about Kim is that she's a freaking idiot for being with Jimmy and going along with his crap. I'm sure Jimmy utterly ruining her will be the climax of this season or the next - it's a given. I find their relationship to be quite implausible.
Like someone else said I mostly watch the show for Mike and that story.