I like this more on the small screen, even without the 3D, and now that my expectations are not too high.
The CGI smirk I mentioned isn't seen quite as often as I remembered, but now I notice how they turned Flynn into some kind of hippie with his colloquial speech. He's been there for what would seem to be at very least hundreds of years, if not thousands, but he still talks like it's...not even the early 80's...but 60's or 70's. Weird.
I also like the casting more, Sam wasn't as bad as my initial impression.
The "getting dressed" scene is just as horrible and cheesy as I remembered, unfortunately.
My main issue is that I wish they had a whole lot more Boxleitner/TRON in there.
Best moment is still when Sam pops up on the Grid and that first Recognizer descends. Awesome.
That and the loud obnoxious arcade booming Journey and Eurythmics. Memories! LOL
The light cycles were well done, nice anti-aliasing allowing non-90 degree movement in-game.

Needed more games and much less CLU though.
They had some recognizable people in the board room at the start of the movie, like Cillian Murphy as Dillinger's son. Surely they did that with another movie in mind, why else get a "name" actor in there?
The preview for the TRON Uprising animated series looks pretty interesting, and Boxleitner does have a role in that.