i tried the 45g version and i thought it was too light. many accidental key presses when i rested my hands on the keyboard, etc.
also, if you use too much force they feel like typing on a wooden plate, so its REALLY nothing for you if you have powerful hands.
I now have a filco w/ blues and like it much better, realforce 55g could be an alternative
by the way did u know that realforce has a tolerance of 30% or so? some switches felt much lighter than others. i dont really get that.