No enrichment to the saga

Rating: 6/10 (18 December 2015)

I am a huge Star Wars fan and I love the original trilogy and after some analysis I liked the idea of the prequels. If this was my first Star Wars movie I ever watched, than I would have really enjoyed it, but I'm no Star Wars virgin.
First of all it is from the technical aspect the best film of the whole saga. The atmosphere and the effects are great and there are only CGI-Effects if there hasn't been another good looking possibility.
But the most important thing of a movie is it's story and on this The Force Awakens disappointed. What did the writers think? "We know that many people don't like the prequels, so we take the story of the original and change the characters." Han takes the mentor role of Obi-Wan, Poe is a cool pilot like Han Solo, Rey is just like the young Luke Skywalker. I admit that there are some interesting characters like Kylo Ren who is some kind of schizophrenic because he wants to be on the dark side but he is a good guy on the inside. And then there is Finn, who doesn't know what he is doing. Also the the relationship between the characters is not credible. For example are Poe and Finn best buddies after five minutes.
But even though there are new characters, the story is the same as in Episode IV...there are plans given to a droid...the droid has to be returned to his master...the droid should be brought to a resistance group...the bad guys have a giant killing machine...it only has one simple weakness... and so on. Sounds familiar right?
It is almost exactly the same as the original trilogy! Maybe they did not dare to do something new because the prequels did, which problems actually were poor CGI, bad acted characters, strange written dialogs and Jar Jar Binks.
I hoped The Force Awakens would bring me a new original Star Wars story with new ideas and more enrichment to the universe but it got me the same story as in the original trilogy, with some new characters.
All in all can be said that the directing of J.J. Abrams is great (except the lightsaber battle, after Episode 3 I have a high standard) but the writing of the story could have done much better.
Was it a mistake to reject George Lucas' ideas?