I would to use it next time I travel around... that being Argentina, pretty soon!
I don't like going to hotels that much, not only because they are expensive (although that too is an inconvinience lol), but because that way you don't get to learn about the culture inside the place where you are. If I were to go on a trip just to stay inside a hotel, I might as well just rent a room in my very own city!

Good website, I will definately look into it!