In my opinion, I found this episode truely brilliant. Like it has been said, this isn't supposed to be wrapped up in a nice package, that's not how life really is. The show is simply a slice of Tony's life, not his definate rise and fall.

Another idea that hasn't been mentioned yet is that the way it was filmed and the way Tony looked at those men in the restaurant may be to show that Tony, the rest of his life will never be secure. He will always suspect that man going to the bathroom, or the two guys at the counter.
I really enjoyed the ending and you have to face it, no matter what Chase did, he couldn't please everyone...and I doubt he wanted to..