The reason I don't use it is because I never know what videos have it available. If they only had a chrome extension that would detect when I looked at a video that was on you describe, then just automatically redirected me there from youtube, it would be perfect. As it is, only like one tenth of one percent of things on youtube have descriptions on you describe, so I just never remember to bother looking.

Edit to ad: Woe! Is it just me, or did youtube rewrite the entire website this morning? Now I'm confused and upset. I'll probably like it better eventually. Maybe it'll be more accessible. But right now I'm just starting the whiny "WTF?" stage.