 This is my second G... first was a 2006 G35 "S" with the manual.  Also got the manual on my 2009 G37.  The manual transmission really makes this car.  You have to special order, but it's worth the wait.  Had a BMW 328 prior to going to Infiniti the first time and obviously decided to stick with Infiniti.  Maintenance and dealer experiences have been great for the 5 years I've owned my cars.  My only complaints are some minor chipping on the grill (2006 didn't do this),crappy cup holders in the manual version and Bluetooth that won't sync with Droid phones. 