I'm not going to talk about the plot much cause I'm sure most folks have, A. seen it or B. read a review... and most of those are giving away major plot pieces left and right. The story is really a great little allegory on order and chaos, planning and intuition, and not just a standard Good vs. Evil trope. Kevin Flynn sells the greatest of these points when he tells his son of the remarkable evolution he encounters within this system. A thing that one would think static and unchanging, suddenly encounters something remarkable and new which forever alters it's Architects worldview.
For my part... I loved the layered story. The son's search for his father and finding an entirely new world to build, in combination with the fun action sequences, exceptional performances, and beautiful design work, along with the subtext of the allegory; created a great piece that I will enjoy for years to come.
This isn't to say that the film doesn't have flaws. While I applaud the use of the tech behind de-aging Jeff Bridges to play his own nemesis is fantastic and cool, and necessary for this film... It still hasn't reached the point where the face don't feel unreal in comparison too the others on screen. The primary example of this that I can recall is in an opening scene where Flynn tells his young son of his adventures in the 'System' controlled by the MCP. The younger Jeff Bridges face doesn't quit reflect the light of the room right giving his features a slightly unreal cast (though considering they are... that's not too bad).
I'm sure that I went into the movie better informed than most... partly because I'm a more than a bit obsessive about the things in media that capture my attention, so I look for additional bits of story. Which is how I found Tron: Betrayal... a great little 2 book comic series built to tell the story of Kevin Flynn world and the days of it's creation and it's subjugation. It served as a tool to tell of how Flynn found an entire world, but couldn't find enough time to live in them both... and how he eventually got lost in one. Yeah.... tell me that doesn't sound familiar all you folks who just shelled out cash for more World of Warcraft.
So... while the "critical viewing" community seems to be easily split down the center line on this one.. I happily remain optimistic about more Tron productions and hopeful to see more creative work to come. My thoughts to those who haven't had a chance to see it... I suggest you give it a try. You might be surprised.