I received my floorboards today and immediately set to work installing them. I took my time, and it took me about an hour an a half. Installation was pretty painless, and I was able to get them both installed without as much as chipping the paint off of my fingernails. My only complaint is the instructions are a bit confusing on the brake side, with a lot of extra stuff that really didn't matter. I was able to get the new brake pedal slid onto the shaft with the aid of some liquid dish detergent.
I would also like to comment that the installation video is highly lacking. He quickly shows the installation of the shift side, but fails to demonstrate installation of the brake side, which IMO is much more difficult.
After installation, I ended up with an extra deployment hook and bolts, plus an extra heel pedal for the shifter. I'm not sure if this is a mistake in packaging or what.
I took her for a test ride right after installation, and found the heel/toe shifting to be very natural, the position of the boards very comfortable. I'm 5'8" with size 11 (woman's) feet, and found the positioning to be quite comfortable. I do have the Kuryakyn highway pegs, so I'm able to stretch my legs when on the open road.
I've read all the reviews, and can understand why the big guys with the big feet (and big socks, LOL) might find this configuration uncomfortable.