We used the Tahoe for both city driving and for long distance travels (Florida to Virginia). We have the towing package and have towed a large 18' boat to the Florida Keys and to Virginia with no issues. Very reliable and dependable. Even after 11 years we have had minimal component replacement. 1 A/C, 1 radiator, 1 water pump.
Tailgate has been fun to have. Some times when camping, we have had to fold down seats and sleep in the car. Air mattress fits very well in the rear.
Only drawback we have found is that it is hard to completely stop the air even when you turn off the individual vents.