Yeah, nice comparison, cheers Andy.
Think I'm sticking with my v1 for now, the new one is a decent amount faster really but not sure it's worth upgrading for me.
I leave mine on all the time, that way I can then use CEC to turn on TV/Amp simply by starting to 'cast' (from the app 'home' bit rather than start playing and then start casting like you did), for me with this setup by the time the TV has woken up it's almost ready to start playing via the chromecast, so it works. With the new one I'd guess it'll just get ready to play seconds before the TV wakes up properly.