What did you think?: Shutter Island (2010)

Now that you have seen Shutter Island (2010), what did you think of it? After all the delays, was Shutter Island (2010) worth the wait? I read a few comments on another film website that partiucally gave away a surprise in the third act, I assume its supposed to be a surprise with those unfamiliar with the source material. Did you see the ending to Shutter Island (2010) coming? Did you leave the movie theater satisfied or were you better off staying how and watching Goodfellas again? From the commercials I could tell the film was beautifully shot but did the story match the visual presentation? Leave your thoughts on Shutter Island (2010) below.