At the moment I would say it is better and deeper than the first season. I really like the display of the difficult emotions and situations of everyone, the cast is really amazing in this. I can't explain my feeling, but for me maybe the cast of season 2 is way better in acting or maybe the script is better developed. Nevertheless, we only have watched until episode 6 so far, we will see what happens. :)
I think it also might by influenced by the script.