Gabor made another great article, this time about Pentacon Six.
I understand his passion for this camera. I had a P6 too with three lenses: Flektogon 55 (photo below), Biotar 80 and Sonnar 180.
I used this camera a few times but I gave up because it was too heavy to take all three lenses for a walk. I ended up using only one, usually the 80 mm. So I thought that, for a single-lens 6×6 camera, Rolleiflex was more compact and light.
I used the Sonnar 180 on my Yashica 35 mm with an adapter.
Here a picture taken with Sonnar 180 on 35 mm film.