I just traded in my '02 Suburban for an '07 Avalanche Z-71 4x4. I love this truck. The exhaust and engine sound great. The new interior and dash cluster really looks up to date and then some. The engine is very responsive and shifts very smooth. Fit and finish inside and out is fantastic. The new rack and pinion steering feels much better than my '02 Suburban. The aluminum control arms and coil over suspension absorbs road shock from bumps and holes very well. The overall feel and look of this truck is awesome. GM has hit a home run with there new line of full size trucks.
Front end look, new dash cluster, radio controls on the steering wheel, mid-gate, dual climate control...the whole truck really.
None to date. This is exactly what I wanted and paid for.