How do they ride? Would you run them again?

I know smaller tire dimensions are becoming more common now but I just wasn't sure how many people actually daily a vehicle with "skinny" tires. The set up I am looking at in particular is 245/30/20 on 20x8.5" wheels for my GTO. I've honed my pothole dodging skills driving my Datsun 510 and Volvo 240, both of which were on 40 series tires, however, I've never driven anything with 30s on it. I ran the tire calculations and these will only be about .3 of an inch larger in diameter than the stockers with about .41% speed increase.

Here's the set in question -