Hi Korneis, this material is just a glass with tinted reflection, so that is what you get.
However,as far as I know you should use a reflection plane and place that where the mirror is. Probably just behind it, so you still use this material, but what you see through it is the reflection plane.
I hope this makes sense.
You can find this under: Shift-A > Light Probe > Reflection Plane.
Good luck.
