My wife and I are both using it now. Love the boost in energy. We both take two in the morning. Caffeine is strong but the burn goes allday because of the capsules. Fantastic results after one month of use.

I used to use blue keys but I didn't like how I couldn't float. As soon as Razer came out with the Black Widow I got one and instantly fell in love with the green keys. I love the actuation pressure and I love exactly where the key 'clicks'.