I have used similar retro keyboards to this. I think it was that company that got the machinery from IBM.

This stuff has cool factor but it’s pretty terrible compared to the incredibly varied and fully customizable modern mechanical keyboard market.

It was a nice novelty for me to have an “IBM keyboard” but outside the novelty it wasn’t anywhere close to being a competitive keyboard.

Someone interested in this should just buy real vintage equipment as the novelty factor on that is way higher.