I've never really got the criticism of it's wet weather ability (even then, it trails by a small margin to only 3 other tyres). In the cold and wet, yes, it can be slippery, but above 7c in the wet, its as good as any tyre I've ever used. I was in heavy rain the other day on very windy roads, and I was going as quickly as I imagine anyone in their right mind would. The MPSS didn't even flinch at this. I can't imagine how quickly you'd need to be going in the wet for it's lesser wet weather ability to show? The turn in and confidence it gives is something which is very noticeable when swapping from other tyres. It's hard to describe, but that's the best I've got.
Yes, it has it's negatives - it's quite noisy and quite a firm tyre. These are completely valid points in my experience. Apart from these though, it's a very, very good tyre. It also has a big positive that somehow it seems to not wear at even half the rate of the Goodyears and Continental tyres i've had previously.
Basically. The new MPSS 2 will be coming 2017.
Until then, I hope the PS4 will be as good as the outgoing MPSS