It works OK because the camera's viewfinder is large enough to be usable through a mask. Besides the macro lens, accessories include a strobe, strobe arm, and bottom-mount tray. Especially welcome is a long, articulated strobe arm, allowing you to place the light where you want it. It's mounted to a substantial tray with a hand grip. Also like the MX-10, it requires you to choose an aperture without aid of a light meter.
Optical quality is excellent, too.
Even the compact strobe is suspiciously similar at the business end. It can be rotated up or down at the end of the mounting arm, but not otherwise adjusted. A close-up lens attaches to the outside via a neoprene and velcro strap. Not the most optically precise mounting, perhaps, but it seems to work. It includes a parallax correcting mask for the viewfinder, which is, however, very small.