The Robbie folks show a gross weight IGE hover at 7950 feet I think it is...which using their weight numbers would give about a 500-600 pound load of pax and/or freight. I guess that assumes the usual ISA day.
What they don't factor in is the piston engine reliability as compared to a turbine engine.
Compared to a B model 206....not much difference probably.
The service ceiling of 14,000 msl might then become a problem.
My vote is still the same....when it comes to Robbies...."Eat another Cheeseburger with Fries and Chocolate Shake and just say No!"