[GretchenGotGrowl]

So, here are my impressions after driving it for a day.

1) The 8L90 is absolutely awesome. Even in Tour mode is shifts very quickly and firmly.
2) Steering is VERY precise and the overall feel is neutral (haven't really gotten on it, yet).
3) Ride is much better than I expected. It handles bumps amazingly well, and you can even feel the ride control working on really bumpy roads.
4) With the exhaust valves open it sounds fantastic. With them closed it is very quite (unless you have the roof off). In 4-banger mode...well let's just say it isn't much different than the L99s sounded.
5) The adjustable seat bolsters are great...better than I expected. I've got a 33" waist and I could get them nice and snug with some room to tighten up more. But you can open them all the way out for easy exit. (segway...)
6) The auto set for exiting the car works really well. It will adjust all aspects of the seat positions and steering wheel so getting in and out is much easier than the C6 Z06. One word of caution; you can't adjust the position of the shoulder part of the seat belt, so take it off before the exit feature kicks in or you might get a pretty good squeeze on your shoulder.
Update: The auto entry/exit quit working. I think I know the issue and will try the fix tonight (had to drive the truck today). It seems that if you set the auto exit with the seat all the way back, it hits a switch, so when you start up the car it is locked in that position and can't go back to your normal position. I thought I would add that in case someone else ran into the issue.
EDIT: That was it. The seat can't be all the way back. I simply moved it all the way back, then forward about 1/2 inch. Then I set the exit position and all is good. I find it a bit odd there is a st switch with no back seat, but it is what it is.
7) As expected with a PD blower, the power comes on quick. In Tour mode it kicks out of 4-banger mode pretty quickly, but I tried Eco mode for a while and it seems like takes a few seconds to turn of AFM in that case. That seems a bit odd to me, so I'll play with it some more. Frankly, I don't think this thing will ever see Eco mode except when I'm playing around.
8) I'm just shy of 6' and there is plenty of room for a helmet.

Mustang friend's impressions...
1) Wow, GM really upped their game on this interior
2) Steering is amazing
3) Sounds bada$$
4) Damn, I barely have press the go pedal.
5) I've never been in a car that corners like this; simply amazing
6) The HUD is amazing
7) Visibility is great. What is everyone complaining about (I pointed out owners don't seem to complain).

I'll wrap up by saying I love this thing. I miss my Camaro, but this thing is just awesome.