I recently purchased a Heineken DraughtKeg (basically a minikeg) to bring to Hershey for Leary's wedding, so I could drink in my room without the obtrusiveness of a bunch of bottles or cans.
The keg holds 5 liters, roughly equal to 10.5 pints or 14 12-ounce beers.
At a cost of $18.99, that's a pretty good value, especially in contrast to the hotel bar.
It wasn't that big, or that heavy, and fit perfectly in the hotel fridge, which was quite convenient.
I asked The Concierge to tap it for me and here's his review of the product with my thoughts mixed in:
"The Heineken Keg is a fun product, easy enough to use but has room for improvement. The two step tapping of the keg is easy enough but tapping results in a premature discharge of beer."
The Conch prematurely discharged beer all over my sandals.
"Perhaps there is a written warning about this...who reads the directions on how to open a beer though. The pouring feature is a bit counterintuitive because you pull up on the lever instead of pressing down - this is actually the simpliest way to design the keg flow but people enjoy pressing down on a tap. Finally, the pours of beer have a lot of bubbles (foam), almost look like it was pressurized with nitrous oxide rather than CO(2)."
There was a tremendous amount of foam, and not just after the initial tap, each subsequent pour, even days later, was about 25% foam.
"Perhaps the pressure loss from seepage over the time the keg is tapped requires extra gas so that you don't run out. However this feature does make it fun pouring beer directly into your mouth. All said, this is a good product but I prefer ice cold bottles because of the lack of excess foam."
I prefer bottles as well but was happy with the keg because it did stay fresh for days afterwards (I still have some left), it promises to stay fresh for up to 30 days.
I also like the fact that this is more eco-friendly because it has much less packaging than bottles or cans. But I'm not quite sure how I'm supposed to discard the keg when I'm done. Does it go out with the regular trash?
With the foam being a secondary issue for me, my biggest complaint was that the keg leaks. The small hose through which the beer is dispensed always held a few drops after each pour and despite my best efforts to shake, tap and wipe those drops away I still found a small puddle of beer on my refrigerator shelf.
The biggest thing the keg has going for it is novelty, so I'd recommend buying it once, and deciding for yourself.