Try it. Obviously you need to have the right sense of humour for this, if you don't like goofy home video shows and things like Jackass then you're obviously not going to like this.
Some episodes are better than others so I'd say you need to see a few before getting a decent idea of it (like pretty much every TV series).
And I don't think that people could honestly tell you whether or not this is worth watching unless they know you really well.
I'll admit I'm not very fond of the hosts, they do annoy me, but if you can get past the over the top comments then the videos are pretty funny. I got quite a few more than decent laughs out of it.