...one can't rely on things people tell.
One observation I made over the past few years is the following: some people buy a certain product. This product proves to be inferior or not what they expected. Now me, you and maybe others would say "what a crap, let's get rid of it". These people usually try it again and again and again because they can't believe they spent so much money for...crap.
I didn't drive the Dunlop Super Sport personally, so I can't say much about it. I did drive the P-Zero Corsa for a short period of time and I liked it, although I hadn't the chance to drive it on wet pavement.
I did drive the P-Zero C a few times and I liked it too but on the wet, this tire is horror.
A last thought: some people blame the tires for their inferior driving skills. It is sometimes funny to see how people on OEM factory tires outrun cars with "C"s and Corsas, talking about the same car.
The two people I talked to about the Dunlop Super Sport drove it on the GT3 and both are very good and experienced drivers. They ordered now the Corsa but didn't get it yet.
As soon as they drove it, I'll post their personal experience.
Right now, the Corsa is VERY hard to get in Germany and this is one reason why a lot of track addicts switch to the Super Sport or the Michelin.