They've got an impressive grip on dry tarmac with quite a good feedback through the steering wheel. You can tell what the tyres are doing, whether understeering or oversteering. They're cheap compare to similar tyres from Michelin PS4 or Bridgestone Potenza S007. The wet weather performance isn't that great, but when they do aquaplane, the tyres will give you plenty of warning and quite controllable. However, if you use these tyres in tarmac with a lot of dust or gravel, they will be very slippery. Golf with only around 200hp was lighting up its traction control because the tyres couldn't get much grip. If you use these on the track, you need to give them some temperature as they're slippery when cold, but when the temp had come up to their operating window, they're quite sticky. Track use, they will last longer than PS4, more durable. Road use, they will have uneven wear and the middle part of the groves cave in (probably because of pressure or maybe the tyres couldn't get enough temp into it) and they will start cracking after 3 years.
Don't expect much from comfort because they have stiff sidewall and you could lean on the grip of the tyre when the condition is right.