You're going to be disappointed in Nissan's paint quality. I'm going to be respraying a large part of mine as the clear isn't holding up that well, even though I'm probably as meticulous as you and my car lives 98% of its life in a garage. Look at it sideways and it'll chip. Also there's tons of orange peel, as I'm sure you've noticed by now. This is common on all new vehicles though; apparently wet-sanding is a lost art and most people don't even notice.
The 370 weighs around 3200lbs, not 2200. It's a lightweight compared to that porker of a Camaro you're used to, but it's no Lotus either.
Power-wise I was satisfied when I first bought it. I did test a 5.0 and a 2011 SS after all... Now I want more. But everyone always wants more eventually, even the guy with the GT-R.
The interior isn't super great IMO but I've got a nismo (basically a base/sport with a cool body kit and wider wheels) so I can't comment on the touring package. It still blows away the plastic in my old '95 Mustang though.
Enjoy the new ride.
