Dawn of the Planet of the Apes is a decent movie. Whether you have seen the first film in this reboot (Rise of the Planet of the Apes) or not, you should enjoy it.
If you don’t usually enjoy dystopian Sci-Fi films, such as these, then you might like this one. I don’t care for them either, but this one is well-made. I’m new to the Apes franchise and I enjoyed it a lot. If you are interested, check out my spoiler-free review at MovieByte.