I like the clean design but it feels unfinished. Two problems in particular:
1. There's no way to organise documents into projects - every document you create becomes another giant rectangular icon in the crowded "overview" area. There's not even a text-only option for the overview.
2. There's no way to sync created documents with other Macs or iOS devices. There's an "on iCloud" option in one of the menus, but it's permanently greyed out and nothing in the documentation about how to use it. And there's no indication of where files are actually stored or any way to change that location, so I can't use Dropbox either.
With a bit more work, it could be a budget version of Ulysses, but it's not there yet.