Got the review copy today. Thus far I am enjoying it, but it hasn't totally hooked me yet. I'll be honest, I miss the trucks and the more standard racing found in Excite Truck. Though as of right now, I've only played for a short while.
I'll tell you this, in Excite Truck I used to always turbo with right on the D-Pad, now that I HAVE TO use up or down, it is driving me nuts. I suppose I'll get used to it eventually, but man, I'd love to know why you can't use the whole D-Pad or if Left and Right eventually have a function, remap the D-Pad to your liking.