Held this controller today and it feels just so damn good. Triggers feel great when locked, and the paddles on the back are nicely places and have a really light action about them. The sticks are super smooth, and in a nice surprise, the main Xbox button on the front isn't squishy like the normal controller.
Yes, $150 is a lot, but then again, so is spending $200+ on an arcade joystick. Not everyone will see $150 in value in this controller, but for a portion of the user base this controller will be heaven.
I'm glad i've preordered mine and can't wait.