The paradox is that legibility is not your primary concern, when of course that SHOULD be your primary concern. It's because you've concentrated on
consistency that some of the letters don't work - the A and R are almost the same, and the D, E and Z don't quite work. With a bit of tweaking it could look great.
The outline is far too thin, and the thinnest lines on the main letters is a bit too thin I think.