It is an awesome list maker. Almost perfect. The auto syncing and having an app for every device are the killers.
But, as a list maker, why can't I make lists in user defined order? This is one of the most fundamental things a list maker should be able to do. It's so painful it's almost a deal breaker. There is no more natural way to sort things into priority order. I need to be able to switch to different notebooks (and tags, potentially) and immediately see what's most important, but the only way to do that now is clumsy hacks and workarounds. I can't throw stuff in and iterate over it until it's a hunk of polished gold. Instead, I have to come up with a "system" to manage it all. It's frustrating. Dragging things into order is the most low-tech way of prioritizing work. I read recently that low-tech solutions appeal to geeks, so maybe that's why it appeals to me. The fact that you can't drag stuff into order forces you to over-engineer your approach to task management.
For now, I make lists inside notes, but then I lose much of the power that makes evernote useful in the first place.