The game got two points higher then it should of, the demo was one of the worst things i have played this gen.
Regarding the U3 engine, is epic not being sued for making a shitty engine that does not work right. Part of the suit is also that Epic is not giving people what they want, from what i heard they are using a modified U3 engine to make Gears and UT3, and telling people they made them with the engine they are selling.