I approximate that astrology is bullshit based on nothing. So far the data backs me up and no one has found any positive data in it's favour. Astrology is conman crap, always has been.
Are you going to start telling me evolution doesn't exist, because it's just a theory next?
Nope, it's a really great adaptation. The changes they made were mostly to make it work better in live action, and a few story changes I actually really liked since they improved on aspects of some characters back stories.
And really, it's juts a lot of fun. My girlfriend who doesn't watch any anime absolutely loved the live action version, and is impatient for season 2.