Samuel L. Jackson, who played Mace Windu in the Star Wars prequels, gave his inputs on The Force Awakens. He definitely has the right to do so as he is a great actor and has made some amazing films, even though he wasn't the most 'expressive' character ever as Mace Windu.
Jackson was a guest on Popcorn with Peter Travers and gave quite an interesting comment when asked how he liked the latest Star Wars film to the franchise. He said the movie was "done in the spirit of the Star Wars films.” He then went on to say that the film’s young cast would benefit from some time at “lightsaber fight school.” You can watch the short interview clip below.
Obviously 'lightsaber school' was a joke and it sounded like he didn't quite love the film but thought of it as a fun little movie. There was a point though to Rey, Finn, and Kylo Ren not knowing how to wield a lightsaber for the reason that they are are novices. Finn is not even a Jedi, or at least we don't think so. Rey never picked up a lightsaber in her life and Kylo Ren hasn't finished his training. On top of that Kylo was shot by Chewbacca. Also, after reading the Force Awakens novel, it reveals that he killed his father, Han Solo, to get stronger as he knows his idol, Darth Vader, had to make a choice in Return of the Jedi to save his son or let him die by the hands of the Emperor, and we all know he chose to save Luke. Kylo Ren is scared he will never be as powerful as Vader and he thought making the choice he had to make and kill Han would make him stronger. According to the novel, it made him very weak which was also a huge factor of why he lost that lightsaber 'duel'. I'm also with Sam L. Jackson that there have been better lightsaber fights, even in the prequels, but this one had emotions. I guarantee Episode 8 and 9 will have much better lightsaber fights when Rey and Kylo graduate 'lightsaber school' and duel it out, possibly with Luke and/or Snoke?