I finally had a chance to see The Force Awakens this afternoon with my parents, and let me begin my review by saying that it was awesome!
Before you continue reading, please be aware that this review contains heavy spoilers for the movie, so if you haven't seen it yet, you may want to hold off on this article.
I enjoyed performing mental comparisons with the technology in The Force Awakens to the original trilogy as I watched, and it was nice to see that things like user interfaces, while upgraded, were true to the original designs of A New Hope. In particular, the targeting interface in the Millenium Falcon's turret was as far as I could tell identical to the original, and the TIE interface was not significantly altered either.
An unfortunate side effect of this, however, is that the user interfaces in the prequel trilogy still seem to be more advanced, despite being over a hundred years old in-universe.
Moving on from the tech, the diversity of aliens was remarkably small in The Force Awakens, with only a handful of species readily identifiable to me. I noticed Mon Calamari, At least one Dug and Sullustan, a Wookie, obviously, and maybe some Bothans. I was disappointed to not see any Ithorians or Bith in Maz Kanata's castle.
Anyway, those are the things that stood out to me as a Star Wars fan in the movie. As far as entertainment value goes, it was excellent, perhaps to the point of making the original hexalogy seem dull in comparison. I give it a five-star rating, and think Mr. Abrams did a fantastic job of rebooting the franchise.
Some unanswered questions from The Force Awakens:
How did Luke Skywalker's original lightsaber, the one given to him by Obi-Wan Kenobi, survive the drop into Bespin's super-dense atmosphere? Who rescued it before it could be crushed into a dense ball of metal?