This movie has a style that is different from most, if not all Batman movies so far. It is quite a bit lighter, brighter in the less serious sense. So if you're open to see something a bit different, you'll enjoy it. If you are hoping to see something that goes along with the previous Batman movies, you might feel that your expectations aren't met.
Had this movie tried to merge its colorful, somewhat more cartoony style with a serious, dark narrative that is usually a common thing to expect, given that it plays in Gotham, it would have failed to do so and felt really out of place. Instead it takes events a bit less serious, mixing well written, witty dialogue that has some quite entertaining moments with a story that is simple, but serves its purpose, resulting in a combination that works - if you're open to see these kind of things (and don't expect to be surprised by intricate plot-twists - other reviews pick up on this). That also makes this movie quite easy to stomach for the younger audiences. Style, story and dialogue have been chosen to work together, which is nice to see.
The animation quality is very much acceptable and up to the task, voice acting is very nice! No complaints there. The soundtrack is also good.
Enjoyed!