...the ergonomics take a little bit of getting used to....
The only ergonomic problem I can think of is that heater knob is within reach of the passenger. I used to learn with an instructor who also taught on flexwings - if his previous lesson was on a flying-hankie then he'd be cold whereas I'd be warm having sat next to the log fire in the clubhouse. We spent more time setting the heater on & off than anything else.
I suspect people find the flap lever in the roof unfamiliar at first but most of my fellow students got the hang of it really quickly. Anyway, its something else to hang onto when it gets rough if you can't reach the cabin frame
