I bought an 08 GX 470 for my wife and love every bit of this truck. I own an 06 Trailblazer SS and love it to death. I can say the Lexus out performs the SS in every category except performance. The Lexus is tight The doors don't rattle when you shut them. At the age of 33 I'm really sick of all the American cars I've had. I guess I'm getting old and tired of dealing with the problems. GX 470 is awesome.
Nav is nice, good power, great quality for the price. Perfect ride for being 4wd capable.
Heated seats are not hot enough, get rid of loud clutch fan in the engine. Make the dash look like a 06 Lincoln Aviator, passenger side seat should move up and down.