I made it out there yesterday and I am glad I did. Incidentally, this was my first trip to Texas.
I was impressed. It seems like a very nice vehicle and is much more solid in how it feels that my bronco. It is much closer to a Lexus LX. There was no on-road driving, but it did very well off-road. I thought the interior was nice, and the Fieldmaster I was in had the safari windows, which did not get hot despite it being warm and sunny. Also, the rear seat has plenty of space (I'm 5'10 and had no trouble). Doors are also some of the most solid and heavy I have ever felt on a car.
One thing I noticed is that the pedals are at an unusual angle--kind of like the pedals you see on a bus rather than a car in that they are around 60 degrees to the floor instead of 90 degrees. This took some getting used to. The brakes are also extremely light in their feel to the point where the pedal does not feel to be connected to anything. I'm not sure if this is a prototype issue.
What I noticed more than anything is that the dark colors (green, burgundy, navy) are all very dark, to the point where they look black in anything other than direct sunlight. Even in direct sunlight, you have to look closely to determine just which color it is. I still prefer the dark colors, as the lighter colors have too much contrast with all of the black plastic bits on the car.