That mirror was installed in PCs a few model years after we bought our PC in 2007. I liked it so I ordered one from Phoenix, washed the wall well, and installed it exactly as instructed. We liked it for two reasons.
1) the easy clean surface
2) twice the light (the light in the hood reflected off the mirror)
But it didn't last. The mirror fell off before the first main road trip got started, the caulk gave-way from the mirror. I got very lucky, able to remove the caulk from the wall without damage to the wall. So we were back to where we started and are that way to this day. I later replaced the incandescent bulb with a brighter LED so have more light to cook with.