worth the watch, especially if you like off the wall stuff. this was the best season in my opinion, after the first, and definitely has the biggest cliff hanger.
I do miss some of the characters from the earlier seasons, though. This season was almost all about the family.
the Big C is surprisingly fun too. At first my wife got me to watch it and I thought it was going to be a chick flick, while it has some of those tendencies, it has a lot of good humor balanced with melancholy.