There are a lot of factors that go into battery life (background processes, screen brightness, sync settings, etc). That doesn't look that horrible, but not that great either. You're on pace for 10.5 hours, which gets you through a normal work day.
I dunno....I wouldn't be overly impressed with that, but it's not overly horrible either. If you press on the graph, it'll show you the wakes and screen on and stuff, which will provide a bit more detail, and there's tons of battery monitoring apps out there that really would break it down to what's using the battery