I have Angel GT's that came with the bike when I bought it. I think they are good tires, plenty of confidence though mine have a bit of a tip-over sensation when cornering at a certain angle/speed. Perhaps my riding style isn't 'sportive' enough for the tires.
When its wet I have less confidence in them in corners, but it's not like anyone buys tires to go knee-scraping when it rains.
My next tires will be more touring orientated with better wet grip (either metzeler roadtech 01's or michelin pilot road 4/5's). Even so I can recommend the Pirelli's if you have a more sportive riding style.