They're very good, yes. one of the most progressive and feelsome tyres I've driven on.
I found them to be lacking traction in very cold wet / wintery conditions, which is par for the course with a uhp tyre on the road that is outside of its temparature window - they were still perfectly useable. I just couldnt use much boost

. I fitted CC3s on the stock wheels for this reason, which i guess are filling a similar role to what the Rainsport's would for you.
Although the CC3s are very good, and find grip / traction in all conditions, they don't come close to the feel of the goodyears. in dry conditions you can feel the extra movement in the tread blocks.
Maybe consider where you would like the extra feel and performance. the ASY6 are very good for most of the year, and good in winter, so long as it doesnt snow. a rainsport (I have never owned one but I'm familiar with the concept) would probably be better in the winter, but not as good the rest of the year.
If you like to lean on the car, I'd go with a summer tyre and just take it easy in the depths of winter.