I saw this movie recently at the cinema. However, personally, I thought the original movie was better. The clown was scarier in the old ' IT' movie/US television series. Also the story moving back and forward in the early US tv series between the character's childhood and present where they met again, gave more depth and meaning to the movie. The bond and friendship and relationships between the kids was more focussed on in the original movie. In my opinion making it a better movie.

So with less special effect, and a more intense story, the original movie was scarier and creepier and overall a more intense experience to watch.