I like the graphical design, but I think you should add some informations on how to configure the preferences. For example, both "Rim Style" and "Clock Theme" have menu entries "Custom", but it is not clear what this means, i.e. how to "customize" a custom style. Also, I suggest that instead of the check box "digital clock", a menu entry "digital" should be added to the "hands style" menu, because checking "digital clock" effectively disables the present "hands style" anyway.
I love this clock, but I was just wondering if there's some way to reduce the volume on the chime without lowering my overall Windows sound volume. I want the chime on, just a little lower volume.