Mine goes almost the floor but still hits the built in stop just before. I clocked mine to sit lower (Ross will tell you options when you call for tech support on silly things like I did) as my brake pedal is set lower due to limited rod length (story of my life).
If installed in stock location it will hit the built in stop well above floor.
Clutch pedal feels like a new civic effort and smoothness wise.
Yes running and driving, it works very very well