Strange to find the artwork an ugly style ?
I talk about the phase where you control the soldier,
terrain with good multi texture, very good destroyed brideg, good vegetation and trees, some good waterfall with water shader, detailled soldier model, some abandonned town with
AAA style textures ...
For me it's good , perhaps the fact to play in window mode
don't show it as it should do ?

For a simple demo, not commercial thing , it's a really good show i think; don't compare this next gen soldier and
the old low poly models given in A8 !
If you find that ugly, i can't imagine how ugly you can find A8 demos !
It's also a question of personnal taste or 3D artist
perception ?

Well i stop here, it was personnal opinions only.
Yes Unity 3 is solid as rock !!