I purchased one of these about 2 weeks ago and I love it. The fridge will fit 2 corny kegs and a 5 lb CO2 bottle. The unit comes with a 2.5 lb CO2 bottle and regulator that I will now use for purging carboys and kegs while I'm racking batches.
You will have to modify the beverage line fitting because it comes with a line meant for attaching to the half barrel kegs. I plan to upgrade to a 2 tap tower sometime this year, but for now its simple enough to switch kegs or just have my picnic tap attached to whatever keg isn't hooked up to the tower. If you get it, I hope you enjoy yours as much as I do!
Edit: I haven't done any real experimentation to see how cold it gets, but if you dial it about 75% of the way to its maximum, it gets as cold as my full size fridge - around 38-40 degrees.