I am the original owner of a 2WD LT with approx 130K miles. It's been a terrific vehicle. We're into middle-age repairs. Water pump, alternator, radiator, AC etc. Next job is new shocks and struts. Biggest complaint is the brake system. I plan on driving mine for at least another 100-150K miles. BTW, I'm averaging 16MPG in virtually all conditions and loads. My wife's new Pacifica is getting about 18MPG around town.
Size, cargo capacity. Best long-distance driver I've ever owned. There's no single attribute that is outstanding. However, the total package is terrific.
Brakes are soft. Stopping power doesn't instill confidence
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.
Excellent truck, hauls Boy Scouts, church groups, band students and all their equipment. Trip out west pulling a 28 ft. trailer. Great towing capacity, extra large fuel tank (42 gal), just doesn't stop. Lease return, never worked hard. Have put 50K on it with no problems. 4WD is excellent, never stuck, snow, mud. Just keeps going.
Haul 8 adults, 5 adults w/ all their camping gear. Excellent towing capacity,