I've stuck some Kodak 400CN in and taken a few shots. Seems to work OK but wont know until I process the films. The light seal foam has perished though so might get some arty light leak effects. It's tiny but pretty nifty IMO. Zone focus is 1 - 1.5M, 2.5 - inf and something like 8m - inf with, I presume a more stringent limit of acceptable sharpness. You can EV compensate by changing the ISO setting so you still have some control. I'm quite impressed but not looking forward to repairing the light seal.
Funny thing though, the guy who sent it made the effort to remove the batteries, wrap them in a Post-It note and put them inside the film compartment. Thing is, they were completely dead! Why bother?