I'm 100% with these guys.
I looked at both, they're thermoelectric. Unless you like warm beer, I wouldn't even give it a thought.
Avanti and Krups make them, too. Avanti makes one that is compressor driven, it's the CB350S. That will make cold beer, I wouldn't be afraid of it.
I'd still go the old-school route and make my own, for sure. If you really like the mini-kegerator idea, stick with compressor driven.