Any experience 4 speed vs. 6 speed automatics?
 

Hello all...I want to buy an Express (passenger) and have access to the GM family discount, so I'm considering new. BUT...there's a very nice 2009 that has popped up with pretty much everything I'm looking for. The key difference between 2009 and 10/11 is the 6 speed auto; is this a big upgrade or am I never going to even notice it's there?