I use Safari for non-work browsing (the dev tools make it unusable for work, in my opinion). I was a Chrome user, but Chrome nuked the battery on my mbp in record time. Safari has its kinks and oddities, but it sips the battery even with a ton of tabs open, and it's good enough that I've been using it for about a year with pretty much no thoughts of switching. I also like not feeling like I have the big G looking over my shoulder all the time.