It's the best Star Wars film since Empire and, from my perspective, most of the people disappointed by it either were let down because the film doesn't conform to their head-canon or don't understand how storytelling works.
Yup. It runs contrary to what a lot of supporting material was reinforcing through the years (although the prequels toy with the idea of subverting some already established concepts), and it's all the better for it.The messages of this film are still particularly resonant and it'll take awhile for a large section of the fanbase to come to terms and accept them.