Heat mat use??

[DTB]

Does anyone here use a heat mat to warm there terrariums?
I am thinking of using one as the temperature here in winter is getting VERY cold and summer temps in my apartment are rather mild.
Would this work to keep the tank warmer and therefore better growth, Im thinking the roots of the substrate plants would enjoy it and it would help create higher humidity.

I am looking at the Exo Terra Desert Hesat Mat that I can attach to the underside of the tank.

Exo Terra : Heat Wave Desert / Terrarium Substrate Heater

Any thoughts or experiences, problems, successes would be greatly appreciated