Man City were excellent, definitely. It's too early to say anything conclusive, but they look like they might be ones to watch. The only thing that worries me about them is their financial set up. Their new owner Thaksin Shiniwatra seems like a walking lawsuit.
Man City are sort of my second team in the Prem, so I really want them to do well (without finishing higher than West Ham, of course). I get worried when these big money people come in and offer quick solutions to teams (like West Ham and Man City) whose problems run far deeper.