I've just plumbed for another pair of Bridgestone Potenza RE050A XL 235/45R17 97W on mine (older GS300)
I last bought a set in December 2015 for the rear. Done probabaly 20K on them, and I don't drive gently.
To be honest they are grippy as hell in the dry, wet isn't bad but i tend to behave a little more, getting out of junctions enthusiastically usually doesn't go as planned, but that might just be me.
Fuel, bah.
Noise, not bad. Cost...£96 ish a tyre, fitted.