My experiences with them haven't been too bad. Have had both Toyo T1Rs and also Yokohama Parada Spec 2s which seem to both be similar.
I will start with dry handling. Toyos are very good. I wouldnt say as good as the Yokos but are cheaper and the difference in grip isn't majorly noticeable. So they are better value.
In the wet. Dont expect to go round the corners too fast haha. Hardly any grip. I got absolutly demolished by a Diesel golf the other day in the rain. I was pushing as hard as i cold. He sailed past me like i was stood still.
I will run T1Rs during the summer, then changing to winter tyres from now on.