Purchased this a week ago - an excellent vechicle. It is a driver's car - quite, comfortable and fast. Mileage is reasonable (about the same as my Pathfinder). Durability is expected to be above average given that this is an Infiniti. My two Nissans (2001 Maxima & 2003 Pathfinder served me well).
There are many little gadgets and settings in this car. It will be a while before I get to know them.
Option bundling in Canada is restricted - one option with intellgent cruise, lane change warning, DVD, GPS for $7K - all or nothing.