We are racing on these in the MR2 Championship. Some of the heavier MK2s have found the wear rate quite challenging, but the lighter MK1s are wearing well. We've raced in the dry at Mallory (excellent grip, tend to throw lumps off when hot!) and at Brands Hatch in the wet (very very surprised at how grippy and progressive they were in damp and greasy conditions, have not yet experienced large amounts of standing water). All in all have found it to be a good tyre.

I thought they were very good straight out the box. They weren't slding all over the place as some new tyres do with the releasing agents when first run.

They get up to temp pretty quickly and cool down quite quick too. My only gripe with them is less than a day rounds Brands Hatch Indy circuit and I'm just off the wear bars on the fronts being run on 15" rims on a 2001 Mini Cooper Challenge car.

Once bedded in these tyres really come alive. Very sticky (you can hear all the stones being picked up off road and flung against the underside of your car) especially when they get warm.
Cornering is good, the tyre walls are hard but you do get a slight wobble when you don't drive smooth round corners. Traction off the line is superb also.
In the wet they are ok as long as you drive like ms daisy. Do not push your car in the wet with these on and ESPECIALLY do not drive if it has been raining for hours and there is standing water.