My brother and I took my son to see Tron:Ares. He didn't want to see the original or the sequel before we went, which I didn't think was a good idea, but it actually worked out for the best.
From an OG Tron fan this movie was soulless, laking many of the themes that made the first two films entertaining, instead focusing on a poorly developed and unfocused hero's journey primarily set in the "real world." The soundtrack was pedestrian (and I was really looking forward to the NIN OST), didn't elevate the film or support key moments; basically it was a non-entity in the entire production. The acting was bland, plot points were baffling, and the attempt to lean on nostalgia in the third act was hollow. Leto did a great job acting as a program—fit his range perfectly—but, he is not a lead. Also, I'm not sure if it was the director, but Greta Lee was wooden and uninteresting throughout. When she gets sucked into the grid (for all of about 5 minutes) I felt some tension, but once they were able to easily get past the threat I found myself not caring if she survived the second and third acts.
However, my son had a completely different take. Having never seen the other two Tron films he thought it was a good popcorn flick. The special effects drew him in and the paint-by-numbers plot held his interest until the end. He said it was predictable, but he liked the concept and enjoyed the visuals and action.
I think his perspective underscores how bad Disney is with developing IPs (even their own). With the rise of AI they could have done something ground breaking and forward thinking, latching onto the cultural zeitgeist of emerging technology like the original did in the 80's. But instead, they made a movie devoid of rules, with little explanation as to how things operate, peeling away from the technological aspect of the original movie, to deliver just another visually acceptable popcorn flick.
If you're a fan of the original this is a 4/10, but if you've never seen Tron or Tron:Legacy—and can ignore the poor acting—maybe you'll agree with my son and rate it a 7 or 8/10.