It's an important season for his character, cause we need to see him try and fail to live life on the straight and narrow. The problem is it hasn't been terribly exciting. Obviously this will all culminate in him leaving his job and losing Kim, so season 3 will probably be a lot more interesting.
It's still a good watch. The cast is crazy good and they were smart to also turn it into a Mike show to keep this season somewhat intriguing.