I really have nothing bad to say about the ZR2. It is everything I had expected it to be. It's an SUV so the gas mileage won't be the greatest, I, along with other reviewers have had gas gauge problems but as long as I count the mileage I know how much gas is in the tank. I have had to replace the ball joints on each side, and put new brakes 2 years ago. Other than that I haven't had a problem with the truck. It just turned over 100,000 miles, a couple years ago I saw a Ford F-250 stuck on a guys lawn trying to pull out his tractor that was on a Big Tex Trailer. I asked him if he needed any help and my Blazer pulled both the truck and the Big Tex(with tractor on it) right out of the mud.
Make the seat adustment handles better so that they don't break off.