I've previously driven with Continental SportContact 2 and I thought they are silent. Well, after driving 10 000+ km. with Leao Nova Force, I can definitely say these are the quietest tyres I have ever driven with.
In terms of comfort - mine are 225/45/17 94, Extra Load, so I am not very sure we could speak of comfort, but they feel not worse than 205/55/16.
If I could find them, I would definitely buy them if I have no money for more expensive tyres - Continental, Michelin, Goodyear, etc.

