Seen this around for a few years, but never come across anyone on the forums I frequent that actually bought one or showed off any pics of it in action.
I see no reason it wouldn't work, and judging by the number of custom pit builders that are sellin pellet grills or adding a pellet option to smokers its bound to have an audience.
Its comparably priced with the Pellet Pro WSM conversions, but I feel I get more bang for my buck with my pellet poopin' bullet.