Just watched Season 4 over the last couple days. I agree with Cory's earlier comment about Hannah and Elijah partying together in Iowa. That was hilarious.
Honestly I think every character is fucking awful but I still like the show.

And oddly enough Jessa has become more tolerable for me while Hannah has become less and less as the show goes on. I couldn't believe she used Jake Lacy's character on their first date to show up at Mimi Rose's art show. Actually I could, but it is such psychotic behavior. Then going to get piercings with the student and totally backing out when it was her turn. That was really awful. But it's typical Hannah.
Marnie is just insufferable. I want to like her but she's awful. Allison Williams is so stunning though.
I really liked the addition of Jake Lacy this season. I love this guy. He's so charming in pretty much everything I've seen him in (
Obvious Child,
Love the Coopers,
How To Be Single, and now
Girls). I love his character and Hannah doesn't deserve him. That being said I love the final scene of Season 4 and I would have been ok with the show ending there. I mean I'm glad it's back but it would have been a solid ending. Sadly Hannah will obviously fuck up this relationship.