Good enough. I've had a couple of slides - but nothing I didn't expect and only when I've kind of gone looking for them.
Utter rubbish on anything wet and muddy (but I think you could've probably guessed that).
Mine are somewhat blued now (hot weather and pacy riding) and a bit squared off after about 2000 miles, but on balance I 'd say I like them. I didn't think I'd trust them as much as something from the Pirelli/Metzeler stable, but actually I've been pleasantly surprised.