Just rode this yesterday at Disneyland. It was good. It was very, very good. I'm a big fan of simulators and the 3D in this was well done (added a lot of depth), and the digital projection (giant plasma?) was much crisper than the previous projection (film?). I like that there will be different flights, and not just the same one over and over. In terms of total immersion, this one runs a close second to the Simpsons ride at Universal. (In terms of which one I would ride over and over, Star Tours wins hands-down.) The new gift shop has a giant (7/8 scale, maybe) X-Wing hanging from the ceiling.
Extra bonus thrill: My 4-year-old son was tagged as "the Rebel spy." (Since we're local and have annual passports, my plan is to get there at opening one day soon, ride it a couple of times, and leave.)