Product review (4 stars): It keeps beer cold!
I purchased this to go in my homemade bar, and it works like a charm... beer has a comfortable chill to it when it hits my lips. When the compressor kicks in it does let out quite a good hum that is noticeable if there isn't ambient noise in the room, though.  Not enough to be off-putting though... if there's music playing or people talking, it's hardly noticeable.