Product review (4 stars): It's fine.
I had my reservations about this reading all the negative reviews but I did buy it and only spent $150+tax for a brand new unit.  I gave it 3 hrs with beer off the shelf and it was "okay" at first.  I gave it 24 hrs and it is fine.  I keep the unit next to my chest freezer in my office away from sunlight and I live in FL.  It is about 78-80 degrees in my house and I just had a beer.  I'm not an ice cold beer drinker to begin with but it was cold enough especially after a 14 mile bike ride.  Depending on what type of beer you drink it shouldn't be any colder than 42 degrees anyway.  You lose flavor below that temp. And if anyone wants it colder than that they should just get another refrigerator and keep your beer in there or just add ice, it's not going to matter anyway if you like your beer that cold.  Once the Guinness can opens up with no foam it is cold enough. I also have domestic non light beers in bottles and cans, again I drink beer for flavor. Don't open the door all the time, keep it out of sunlight because of the glass door & keep it almost at it's coldest temp and you'll be fine.  I also have bottled water, Diet Coke & Gatorade in there and it seriously has no issues.