I used it too for a time, but it was getting hard to tell the health status since the bar doesn't go down it just scales down with different colors for each steps. The rest though I loved. If i could find a way to disable the scaling of the health bar I would use it again.
As an aside, it's either that 1) I never noticed Layo had done this and I'm fuzzy on how it fits into lore, or 2) It's from the GUI - but the standard moonlight skybox has a big green moon. I didn't notice it until the GUI addition, so I was curious if it was from that, and if so, if you knew how to remove it.