Compared to the book?
I haven't read the book. I saw the film a few years ago when it was new and most of it again tonight. I can't help but think the same now as I did then: it feels rushed.
Maybe I am not part of the target group (I'm M20), but even as a 15-year-old I had problems with it. I don't mind the actors or setting, but the script is a bit dry and some scenes feel rushed or out of place. (Tristan departing from his father is one, Tristan and Yvaine being captured by the pirates another.) On the other hand, I think the witches get too much screentime and their scenes rely too heavily on humor and/or special effects. The "final battle" verges on bizarre to me. Robert de Niro is the best part of the film, and I like the seven princes - but I just can't bring myself to take it very seriously.
I know Neil Gaiman is a much liked writer, so I'm wondering if the book is similar or if the story may simply suffer from being compressed into a feature film. Since it receives such praise on here, what do you love so much about it? Is it the romance, the magic, the humor? I do not mind YA and I think Hunger Games and The Mortal Instruments are all right (again, have not read the books), but I absolutely detest Twilight in book and film format, and I dislike The Golden Compass film because they butchered the book's storyline.