Saw the test pilot, can't remember his name, demonstrate the N22 at Farnborough in, I think, 1970/1. It demonstrated against a Twin Otter and a Dornier Do-28, it outperformed them in all areas except speed and I don't think that was what it was designed for anyway.
I finally got to fly the N24 some years later and thoroughly enjoyed the experience. A great plane for sucking you out of muddy strips that would only take a chopper. That short field approach had a great view of the mud too.
Some parts need improving, but don't change it too much and I might even enjoy another go at it