I may get shot for saying this, but both Smooth and I are running Simex at the moment and they are one of the best tyres I have used if you are looking for long life. I have had these for almost 30,000 Km and they still have half tread on them.... and you have all seen how I drive, so I think that is great mileage.
They are quite sticky once warmed up, they aren't that crash hot in the wet though.
Not the best for really hard cornering either, as I feel they have a bit too much give in the sidewall.
maybe Smooth can tell us his thoughts