I was born in 1985 but saw the first one on TV, at least two times, about 10 years apart. There's an amazing amount of technical jargon and references woven seamlessly into the naming of characters, objects and locations. Has a slight feel of The Wizard of Oz to it - adventurous trek through a fantasy world to see a wise central character and destroy a tyrant.
The Matrix seems quite clumsy and obvious by comparison. That's kinda the point of The Matrix, though - you can understand it without reading every book O'Reilly have published.
My favourite
TRON: Legacy poster is the first one I saw, via e-mail from a colleague:

(It gets added to a pair of other promotional posters to great
one large scene.)
There's a
TRON: Legacy microsite, done in Flash of course. The visuals certainly seem refined - hopefully they haven't skimped on the plot and the acting.
I'm not going to delve into anything about it beyond this. I plan to see it at a cinema with a friend, or with my family or both at different times in different cinemas.
The proliferation of bright, narrow, neon borders with unnecessary 45° kinks reminds so strongly of the late 1990's...but it's such high resolution and the lighting is so radiant. Here's to a successful reinvention of a classic...or so I hope!