For me, this looks ready to harvest... I wouldn't worry about the tips of the leaves as that generally happens to most grows and doesn't really affect the plant one way or the other - if the tips go brown like this during veg or early flower, then there's a problem but now, not so much. I'd haul out my jewelers loupe or a microscope and take a good look at the trichomes... but I'm willing to bet you should be chopping her!
Good luck! Nice looking grow!!