I have the ZZ3s all round and have heard lots of people say they don't rate them in the wet.
I initially got them cos I'd read good reviews on them and there was an offer on them at a local garage so got em dirt cheap. To be honest I think they're pretty good, especially for the price! They grip well in the dry and have a progressive break away when on the edge of grip so gives more confidence. The wet grip doesn't seem that bad either, but then I don't really push it in the wet anyway cos its too risky in a fast car. Someone once said that he felt it was more to do with a loss of feel rather than grip in the wet though.
Next time I'm gonna say bollocks to cost and go for summat track based for't crack