It wasn't a bad episode, although I agree with an earlier comment that the first twenty minutes dragged. Having said that I was very impressed with how much global heart attack care has moved on in recent years - there was a time when everybody having simultanous heart attacks on the planet would have been a bad thing. But I don't think anybody even died, did they?
And shouldn't have been called The Power Of Four, or was Rory's dad not important enough.