i hope this is a joke, but if it isn't, then no, it's def not worth getting. trust me. it may seem cool for a little while, and then you realize that all your doing is repeatedly bouncing up and down with very little varitation in what you can do. keep the money for something you'll actually use more than a month.
i demoed one at a bike shop near me, and after like 3 minutes i was bored.