In my point of view, I don't really care. In Italy you've got some openly gay transgender senators doing god knows what kind of debaucheries, and the PM uses his own money to screw some call girls...what's the big deal? If that's the worst they can pin on him, I'll die of laughter.
His approval was sky high for quite some time and mud slinging doesn't seem to stick, even at his lowest point I believe he's at 40% or so. He's going to get canned prolly, but it's a sad state of affairs if he get's canned for this. I think much of his diving approval rating and new found critics stem from the economic issues we're all going through more than anything else.