LucidLogic Virtual Vsync - Legit or Bullshit?

I just recently been interested about this software. I've been looking at google but there are few articles about it.

It claims to remove or decrease screen tearing and stuttering by fooling the system that you have an infinite refresh rate so your Video card will still work @ full without sacrificing input delay and lag introduced by traditional Vsync.

Since I play games where VSync must absolutely be turned off to be competitive(DJmax, Osu Taiko, Super Hexagon) I'm more concerned about Input delay (try to play super hexagon with vsync on and off, you'll notice the difference). You can turn off VSync but suffer from Massive screen tearing.

At first I'm convinced that this maybe true, but when it said that it will also decrease/remove stutering, that's where I smell bullshit.

Stutter happens when the frame time being displayed has a large time variance(ms) compared to the current frame that the game engine is asking for the GPU to render. This happens mostly on multi-gpu setups where the frame that should be rendered and displayed get's delayed by some T(ms), the T is then the observable stutter on the game(where there are a number of concurrent frames when there are no animations being displayed). I don't think fooling the system that you have an infinite refresh rate solves this problem.

So does anyone has a first hand experience with this tool? Is it good? or using a traditional frame limiter solves the screen tearing(also helps a bit for input delay)?