I really enjoyed this movie. I liked that they made those call-backs to "A New Hope". I loved the FUN of it, something sorely lacking in the prequels. I didn't think they had one-dimensional characters...you have a stormtrooper who suddenly grows a conscience, a girl with severe abandonment issues, and the main bad guy has a severely out-of-control temper.
My theory is that Rey is Luke's daughter...and, being the giant nerd that I am, I will remind everyone that both Anakin and Luke were highly skilled pilots despite a lack of training and experience. Every time Rey uses the force, it happens almost immediately following Kylo Ren using the force. She's learning from him, however indirectly. There is also a fan theory that she was trained, then had a memory block put in place to hide her from the First Order...why else would she see an island when she uses the force, having only lived on a desert planet? Why else would she get those impressions from the lightsaber if she never learned how to use those powers?
Also, I really hated the new Star Trek movies, and the latest looks to be the worst. They turned Star Trek into nothing more than a backdrop for a poorly-scripted action movie. Star Trek was never about the action - it was about competent, smart people solving problems through the use of their intelligence and technology.