Anyone Else Loving Mavericks?

It wasn't enough that the scrolling went from choppy on heavy sites to smooth as silk everywhere with the free Mavericks update on my 15" rMBP. On light usage my battery life has nearly doubled!. Tumblr_mv5q72pw1i1s2phpno1_500_medium

via 31.media.tumblr.com

Mind you my battery life is below 90%. This is incredible.