I did the preview tonight... and maybe it's not fully finished, but overall, I was mostly underwhelmed.
The good: the new video clips are all great, and a very welcome update. Even the Jimmy Fallon clips are new, and he doesn't wear out his welcome by trying to be too clever. And I like all the vintage tram clips. The queue also looks great.
But I was under the impression there were going to be more live actors. We only had Doc, and his mic wasn't working very well, so he was really hard to hear (something they can easily iron out over time). But thought there were going to be more, a gun fight at 6 Points? Maybe that'll come later?
Earthquake looked great, but the overall experience is basically identical. I thought the runaway train was coming back as an effect, but it's still just sitting on the collapsing bridge, unmoving. It does blow steam from the smokestack, but I was hoping for the old version of it.
The photo op stop has some great opportunities, but if you're not into photo ops, there's not a lot to do. Area felt a bit crowded, but overall well managed. There were pretty long lines for the photo ops, so I suspect it'll be pretty popular. IMO, getting off the tram and boarding a new one went pretty smoothly, although maybe they could add dots so people can line up properly... but even without them, it wasn't much of a problem.
Our guide (the first one) was enthusiastic, but it was pretty clear she's still getting the script down... delivery was uneven, and had a lot of odd pauses. Again, that can be ironed out over time.
But on the whole, to me, it didn't feel that much different than the usual tour. Given all the hype, I was expecting more. Hopefully I'll see more as it progresses, and things get ironed out.