I missed the 2-part regeneration story, but saw the ad for the new episode yesterday, so set the video to tape it while at work last night. Not a fan of this young Doctor though, as I'd prefer an older, wiser, experienced actor to more easily portray those similar traits of a Timelord who is over 800 years old.
Gonna miss David Tennant though. He was too young as well, but was entertaining to watch.