I think the shots Sean have posted with the Lumodi are great, but I just wanted to throw this out there, the light is not like a traditional beauty dish. The closest (not exact either) I've found to a beauty dish is the
36" Photok Softlighter with the included silver insert. It give a nice specular highlight with a soft gradient shadow, with out the spot like light fall off.
If you are basing it on Sean's shots you will be stoked on the Lumodi. I have a similar dish I built from the same specs as the Lumodi and I like it. It is just different light.