Also, SM, keep in mind that temperature changes usually take a day. So after you buy it, it will sit for a day or so to get to the right temperature. You need a thermometer for fridges (available at wal-mart) to dial in the fridge before you buy the beer. And then after you buy the beer let it sit for a day or so because the beer (if it's a keg) will actually warm up the fridge a few degrees.
I am sure a bigger/better fridge could change easily but these danbys take a while to adjust to temperature changes and every degree matters on whether you get a pint of foam or beer. I wasted maybe 10 beers before perfecting the temperature, pressure, opening the tap, pouring. All that to be done right. You can't open the tap scared or it will foam.