I was quite skeptical towards the new interface at first, and I find myself going back to the wp-admin dashboard from time to time, but that’s decreasing fast. The new WordPress.com interface is fast and fun to work with. It focuses on writing and that’s exactly what WordPress is there for. The app (currently only on Mac, but coming to other platforms soon) is fun to work with, especially since you can easily manage all your websites (both WordPress.com or self-hosted ones) into one single place and manage everything. Go check it out if you haven’t already.