I just watched the last 5 episodes in a marathon, taped on my DVR. While it's not quite at the Soprano's level it is close. Plenty of complex charachters...enough mob mischief and hits to keep us satisfied from week to week.
This season finale showed us that both brothers are ruthless and will do whatever it takes to stay ahead. Each made a power play in this episode. Tommy thinking he had a chance at speaker of the house, but falling short (due to his brothers shenanagins) and Michael trying to take out Freddie Cork. Who do they get this zeal for power from?..dear old mom, who hates the fact that she is growing old but always wants to be in charge. She can be the manipulator when she wants.
We also saw Tommy's wife finally confront the mistress. She said she'd kill her if she ever called the house again. She meant it. I'm looking forward to next season which i'll be able to watch from the get-go. These really are good characters that need to be followed.