At one point I even thought 'Oh I'll take diet pills.' I tried it for one day and I thought my heart was going to explode. It's awful and I would never ever recommend it.
I don't purposely speed but I might go over by five or six miles an hour from time to time. It doesn't give me a buzz driving on normal roads because I can't go fast enough. It's never going to be anything like an F1 car.