So I finally got around to putting my lines on.
First impression?
Pedal firmness in drastically improved, which is exactly what I wanted to achieve. Initial bite is also much better, but that is because I installed new brake pads (also by StopTech).
I would say this mod is a no-brainer for anyone that's on the fence about it. I've done this to several motorcycles and a couple of cars and I'm always happy with the results.
Do it!