The scoot in the pick is a Roketa Catalina 150cc. I bought it off ebay four years ago. It took me three years of tearing down, modifying, and tweaking, to get it to where it's reliable. Even though the chinese scoots have gotten "better", If you're set on buying one, purchase it from a local, reputable dealer. At least you can physically kick someone's ass, when you find out what a piece of junk it is.
The Streetmates aren't as fast, but they're a blast to ride, and a zillion times more reliable.