Fucking love it, however I refuse to run on pavement, my ankles a bitch from soccer. Honestly I don't even like lifting weights that much, if just gives me something to do on my off days when my ankle is being a bitch. It's called an endorphin addiction, I can't go more than 2 days without doing something intense otherwise I get depressed as hell.
On the plus side it makes sex/drinking/living/stress/smoking weed/ everything ten times better. It's like some wonder drug for me. Just got 1hour .45 minutes until 2 hours of soccer can't fucking wait.