It's a lot more hardcore than the M3. Definitely not a daily.
Ride is hard, steering is heavy, clutch and gearbox feel stiffer. When you drive it hard the aforementioned all come together and make it an epic drive though.
I rated the E46 M3 as one of the best driving cars ever. This is actually better. It's scary.
It's a lot twitchier than the M3 though, almost like it senses when you are nervous. Get past the fear and stick it to it good and it's like it's connected to your brain directly. I fucking love it.