Brian B wrote a review of Electric EG2 Lens on March 6, 2012
Switching it out takes a minute and I wouldn't want to do it outside in the cold. I bought the orange lens to go with the chrome/bronze that came with the goggles. I thought everything would look weird, but the orange tint isn't confusing or difficult to use. My eyes acclimated instantly. It really helps with seeing contrast when conditions are overcast or snowing.