For 30k I was impressed. Until the fuel pump, transmission, a/c system, heater core, front end, water pump (for the 2nd time) all went out in the same month. 5 grand later my truck is running again. Come to find out this is typical for a Chevy, and all before 100k miles. Unfortunately all at once for us. I love the room, but the true cost to own sends me back to Toyota. Get it together Chevrolet, you might as well be a Ford.
Roominess & versatility, when it is running.
Quality of everything else. Namely, transmission, fuel pump, a/c leaks. Haven't met a Suburban owner yet who hasn't had the same problems.