Cycling a freezer on and off with a temp. controller does place some stress on the compressor, but if you have a newer chest freezer this shouldn't be much of a problem. If you are planning on using a chest freezer you will need a temp controller as even on the warmest setting you will still be below freezing. Most of us have our serving temps set between 38-45 degrees F.
Empire Brewing - Bend, OR
Fermenting: Guv'nor ESB
Kegged: Ominous Black Ale, Molotov IRA, 2011 Below Zero Barleywine, Cream Dream Stout, Amarillo IPA, Apfelwein