Well I've also only played the demo but I liked it...

The gameplay finally came back more to the original UT (which is the best titel of the series imo) by making everything a bit slower and less hectic. The system requirements are pretty low for the visual quality i.e. in contrast to many new titles you can also play it on decent detail levels even on older systems (though I don't know how it's on the high detail level as it isn't in the demo)...

Concerning the points Damocles makes I can only say that I don't think so. That "3 legged machine" isn't that overpowered imo (you usually get your ass kicked when you're inside it in no time) and I never had problems to differ between enemy, friend and environment - only the smaller Vehicles at high distance may mislead you sometimes...

Well for the rest: It's just another UT so don't expect too much from it besides a graphical update, minor gameplay changes and some different maps...

Enjoy your meal
Toast