George Orwell is a master of his craft. His ideas and creations are spectacularly well formed and coherently and vividly conveyed. This book hasn't aged a day. I marked it down from 5 stars for 2 reasons. First is a what I read as or wells belief that man's natural urges are to rape and murder if he can't get his own way (perhaps only intended in the world he's created but still...) and generally an uncomfortable representation of sex and gender. Secondly in the final part of the book there are some very long explanatory chapters that seem overly repetative and hammer their points so hard that they stop being ground breaking and seem to lose a lot of their power that way. 
Over all I loved it.