We have an old house with a non-functioning fireplace. We looked in to vent-less gas logs, but were concerned about the smell. This unit tucked nicely in to the firebox and looks great! We took the advice of another reviewer and softened up the halo effect on the mirror with some flat black spray paint, and it really helped  it not look so phony. The heat function does not work very well, you have to either leave it on for a very long time or be sitting right next to it to feel it, so if you are buying this to use as a source of heat, you probably won't be satisfied. We just use it for the ambiance, and are very happy with it!