Love the Escalade. As for mileage, I'm pretty used to spending more at the pump, already owning an SUV. However, it gets poor mpg. Living in the city I get roughly 10.3 mpg. The best Hwy mpg was 17.6; pretty much coasting downhill. As for build quality, could be better for a luxury truck. Overall, very satisfied with the Escalade.
Cooling seats, powered stepbar
Make sure the craftmanship isn't shoddy. Every detail should be made to perfection since it's boasting the Cadillac name.