[tokanizar]

I feel jealous with your luck. I've had as many crash as I can imagine since switching to Mac from Windows (before, I don't even remember how many times I got freezing apps or BSOD). And it seems to occur that often since Mavericks so it's my sole assumption.

I agree about the battery life improvements part as a nomadic user. However, it's totally depends on which applications you are using. For me, chrome/firefox, which eats up most of the battery, is used constantly, therefore, cannot be turned off (to save energy, because it doesn't support AppNap, I suppose). I don't see any help looking at the Energy Tab as whatever it's like, I don't have a choice there.