I've been very pleased with the 2012 Rock Warrior. So much so that after 100K of hard use as a trailer pull, farm, and winter rescue truck, with OEM TRD (Bilstein) shocks fading, I threw $5K of King / Camburg suspension at it and and intend to keep it forever.
It's lived outside since day one. Debadged, with miles of Texas pinstriping from forest use. Nothing has broken on it under warranty or otherwise. Granted, mpg is not as good as a diesel F250, but it's probably still cheaper to run given the so-far 100% reliability, and certainly was cheaper to purchase.
So no redesigned Tundra for me, but potentially a diesel dually with a jake if I need to tow heavy.