So a little background: I'm the biggest Star Wars fan I've ever met. It goes beyond loving the movies, I've read almost every book, every technical diagram, played every game... I know the Star Wars universe inside and out. This is relevant for two reasons: One, I'm invested in this personally, so it means more to me than most. Two, I went in with a bit of a bias, seeing as Disney had already destroyed what I loved most, the Extended Universe (Which WAS, and will ALWAYS be canon in my eyes...)
I tried to keep an open mind, but this is what I thought. From a purely cinematic standpoint, (Ignoring the EU conflicts, and only looking at previous movies)
1) Disney got their hit in early. A Stormtrooper and a random renegade survive a fight, and immediately have a Hannah Montana moment literally jumping up and down saying "You're so great!" "No, YOU'RE great!" "We're such a great team!" WAY to giddy. It wasn't the kind of real emotion we saw particularly in the original trilogy. It was downright Disney.
2) There wasn't much story building. I personally felt as if it was rolling from one fight scene to another without having you really connect with the characters.
3) There was no personal development. EVERYTHING was handed to you upfront. In the first 10 minutes of the male and female meeting, obviously they have feelings for each other and are already making the romantic move. Within the first 10 minutes of seeing the bad guy "He's Han's son". Nothing builds, it's just suddenly there.
4) Everything was TOO easy. This isn't like Death Star easy, where it was a plan to let the Rebels go so they could track them to their base. Every fight scene followed the same script:
1. A thousand bad guys show up. Everyone freaks out.
2. 5 good guys show up.
3. All of the bad guys die or run away from the 5 good guys.
There's no suspense, there's never any real feeling of danger. As soon as a Resistance member shows up, everything is peachy.
5) So... apparently The Force is easier to master all of a sudden. A person who has never seen a Jedi, had only heard wives tales and didn't think they were real, gets told once "It's all true", and then on the VERY FIRST TRY controls the mind of a Stormtrooper, beats the Sith Lord in a lightsaber fight (Well, another random person who's never learned to use a Lightsaber also does this, so clearly the good guys will always win easily, no matter WHO they are, without any semblance of struggle) and then manages to overpower his use of the force, all within the first two thirds of the movie.
6) There's another Death Star. X-wings fly down a trench. They slip through a gap, shoot torpedoes, and the whole thing blows up. It's literally IV and VI all over again, but without any of the buildup. Those planetary shields that were a problem on Naboo, Hoth and Endor? Oh, yeah, we can just hyperspace jump INSIDE them, and not have to take them out at all in the Falcon.
7) So... the Empire is gone. I can swallow this. They call themselves something else. And the Republic is back. But... the Republic doesn't do anything to get rid of the New Empire, so Leia is a Rebel. Again. With a small Rebel group fighting the Empire. Again.
The prequels were bad, but they at least FELT like Star Wars. I went into this with a truly open mind, and I came out horribly disappointed. Not only did it pander to the Disney/quick action crowds, but it didn't even FEEL like the universe I'd grown to love.
About the only thing that I'm happy about is that the new Empire has a new symbol, so that my support for the Star Wars universe that was will not be misconstrued for this new low.