Sheeesh...it clearly indicates on the FEI website that at least one NPU has already been shipped and received from somewhere... as of Jan 17? Unless you think FEI is lying?
If you're close by...go look at the unit.
I like the idea of modular, 'shipping container size' units...these guys seem to know what they're doing and these re-engineered units look good to me. The time taken to get it right should pay off big time for everyone. http://www.fuelemulsions.com/