Product review (4 stars): Tricky to install, google a bit and take your time and it'll be fine.
Just finished installing, looks and works well.  There's a You-Tube video out there that was helpful, instructions rather sparse.  Mine was on top of glass tile which made it a bit more of a challenge.

Only thing that I dislike is the light's color, Its too blue for me.  I prefer a warmer color.  Other than that, good buy.