Republican convention protest? No, it's in celebration of some volcano's eruption in 1922 in El Salvador. And you know what? I'm down with it. Why not? One night a year, you want to get a little freaky and throw a fireball at your neighbor? Go for it.
What's the bad? There's no conclusion.
Once again we have to bow our heads to the Japanese as they take technological advancements and make them awesome. This time by getting a waterfall to tell me what to buy in a mall (among other things). This thing is definitely cool.