Rotten Tomatoes

Ever hear of Rotten Tomatoes? I am not actually talking about rotten tomatoes, I am talking about the movie critic website.  Critics post what they though of movies and the movies get an overall percentage on how well the movies did in the box office and how good it was.  Adam Sandler's new movie Jack And Jill was credited was a zero percent..... out of 100.  I have yet to see the movie so I can not judge for myself, but I do trust the opinions of Rotten Tomatoes and I don't think I'll be seeing the movie anytime soon! Have any of you seen the movie yet?? What do you think, was the percentage right or wrong?