Product review (5 stars): Works great even if you decide not to put the valve through your refrigerator door.
I have always wanted to buy beer by the keg but that was typically not practical because I only had access to the party pumps that introduce oxygen into the keg, and unless I was throwing a very large party we would rarely make it through a half keg (7.5 gallon) so I finally decided to go ahead and pony up for a full CO2 setup.

I have not installed the valve through my refrigerator door because I do not have a dedicated "kegerator" type set up, what I do is set the keg (usually a half keg or a 5 gallon 1/6bbl) in the refrigerator or in a cooler with the CO2 attached and the beer line just ends with the same valve that I used with the party pump. You have to open the fridge door or cooler lid to get to the tap sitting on top of the keg but it has worked great so far. The way I have it set up we can also use it for camping or picnics and I can loan it to my friends when they are throwing the party without lugging a refrigerator around.