Now these have had a little wearing in I think I can give some first impressions on them. They were bought to replace Michelin Pilot Sport 3s, which I thought were pretty good apart from in colder conditions. Car is an Audi A3 sportback 2.0tdi.
The Goodyears are a lot cheaper - over 25% cheaper in fact, and there are promotions on top of that as well. But cost should be the least of your concerns where tyres are involved IMHO.
Handling wise, they're not as sharp on turn in as the PS3s. Once loaded up the lateral grip isn't far off in the dry, and about equal in the wet, but the bite on turn in is quite lacking and they feel like they're initially understeering compared to the PS3s. Longitudinal grip is a match for the PS3s however, and possibly even better under braking.
While damp road performance is very similar, the Goodyears do cut through standing water better than the PS3s, even when the PS3s were new, so I expect resistance to aquaplaning would be greater.
Comfort-wise, they feel stiffer than the PS3s at the same tyre pressures, so more road surface is transmitted to the wheel - less comfy, but more feedback about the surface type (but this extra stiffness doesn't result in better turn in, which was slightly counter to my expectations). They're also noisier than the PS3s even when the PS3s were new.
Fuel consumption for the Goodyears is better than the equivalent PS3s as well.
I've yet to test in colder conditions - my hope is that they won't suffer the same problem as the PS3s, which stiffened up once the temperature dropped and lost a lot of grip. Obviously too early to mention anything about wear as well.
In summary then, I'd say they are less sporty, but more fuel efficient and a little safer than the PS3s. It'd be interesting to compare the sister tyre - Dunlop BlueResponse - as they look to be the same compound as the Goodyears but with more solid ribs so I'd expect a slightly sportier feel at the possible expense of wet/cold performance.