I have had them on my truck for a few weeks now and I like them. Today was the day I drove them in the rain and I was impressed with the traction. With traction control on, 70-80% throttle from a low roll on, no spin and set me back in the seat. I was totally surprised and liked it.
My old tires would break loose with a touch of the throttle in the rain. Now I am sure if I punched it from a dead stop I would spin them, but it seems 70-80% throttle is the happy medium between smoking them and traction. Definitely happy with General's performance and ride quality so far.
BTW that's the same technique I used at the track the other week and pulled my best 2.05 60ft with them. It's hard not to just punch it, but a little throttle modulation seems to be the key to launching on street tires.