yeah, demo is too limited. I spent 25 of the 30 minutes leveling up to the point where I could try out the wing suit, then in those final 5 minutes I realized the wing suit was pretty weak and became sad.
I don't think I'll get it right away. It is basically Crackdown 1 with a less appealing look and a few changes here and there. The biggest draw compared to the first game is the four person co-op. Playing it alone makes me just want to play the first game because I like the look, camera, shooting, gangs, etc. in that game. I was bummed that cars don't transform as you drive around. And I'm just assuming competitive multiplayer won't be good but I'm sure there is someone out there looking forward to that.
Also, the wing suit, maybe I just didn't understand it. It felt really weird. Basically, it tells you to press Y to deploy it. I hit Y, it does nothing. I hold Y, it does nothing. I press Y twice, it opens and closes right away. It seems like you need to hold it down for but a second, then when it is out, you just seem to fall like a rock. At one point I managed to catch the wind and get a bit more air, but it doesn't work like I was expecting. I thought it would let you glide and cover a good distance with it. Maybe it is just really skill based. That or my expectations were way off after playing things like Gay Tony, Infamous, Prototype, and Just Cause 2.