I drove my Z71 for 120k miles and thoroughly enjoyed the ride. Might be the best vehicle I will every own. I remember everytime I got behind the wheel I thought it can't be this good everytime. It never let me down. For one stretch of near 10k miles I didn't reset the full mpg meter and the gage leveled off at 18.7 mpg. That was excellent for a 5.3L Never did a repair other than a couple of minor jobs under warranty. Reliability was superior to any.
This truck is one of the best designed Chevy trucks I have owned. Everyone I take for a ride likes the 4 doors and roominess. The comfort is better then most cars I have driven. The match of crew cab and short (5'8" bed) is a perfect blend for my use. The 5.3L coupled with the limited slip 3.42 axle is good on mileage and acceleration. The fuel tank is large enough to get me where I need to go with minimal stops at the outrageously priced gas pumps. All in all, this truck was a hit even with some complaints that I had / have.
Best vehicle I ever owned. We recently bought a new Honda Odyssey and I drove it for a month before giving hubby the van and taking my Silverado back. There was nothing wrong with the Honda, it's a great vehicle, but I just love my truck.