I have an '06 Trailblazer that has done nothing buy piss me off...3 rack and pinions..back hatch weld broke, which resulted in the door tweaking, which resulted in the glass shattering, which resulted in us fighting the dealer for a month.
And at this point, with GM and it's stupidity, I'll never buy another GM product!
That being said, if you like the Trailblazer size and all, check out the Saturn Outlook or Honda Pilot...they are both comparable in size and power.