Critics had been harsh on Jim Carrey on this movie. No matter how they said, I'm a YES man to Jim Carrey's comedy movies.
I think the storyline was good. Turning someone to positive is really a good thing for anyone's life. However, a person should be positive in heart and NOT to anything. That's why the ending turns out like that. I did make a comparison with YES Man to Liar Liar but both are quite different movies. Well, we don't really see much stupid acts from Jim Carrey but he still entertain us in a different way now.
In a way, I felt that we could be in his character in the movie. I learned something from the movie. This movie is worth to watch.