Color design of the staircase in the living area, material selection

Sorry but you come across to me like my grandpa who recommended I attach the nameplate on my 700,- Euro door intercom with Tesa :p

No hard feelings, your thoughts honor you ;)

"we also initially considered having the staircase painted after installation"

The staircase looks as if it was made from the start to be "left as is." No ground down weld seams. The surface looks like rolled steel, with the black "skin."

I especially like the edges where the "bare steel" shows through.

you remind me of my grandpa

maybe I could be that in terms of age? :p