I must admit that when this season was first broadcast I was left feeling rather cold. I loved the first season, even if it was a bit hit and miss, but upon my first impressions the second season didn't quite live up to the magic of it. Now that I have rewatched the second season however, I have completely changed my tune. I agree with the reviewer who said that Torchwood seems to get better with time.
Although there are still several mediocre episodes present in this season, it's an improvement on the first, with a little less silliness and a little more independance from it's parent show, Doctor Who. And whilst Owen's 'undead' storyline is a bit daft, it ties in well with that of this season in general. The characters are certainly more down-to-earth and better played, espeically Rhys and Ianto who are far more heavily involved in this series than before.
All in all, whilst it doesn't quite match up to Children of Earth, season two is mostly an exciting, shocking, emotional, well-written and all round great thrill ride, and an improvement on the already great season one. 'From Out Of The Rain ' is a particular favourite of mine.