I've long had a bee in my bonnet about stair design. After centuries of making stairs, we still seem to not be able to get it right reliably.
When I find a comfortable stair, I measure the rise and tread.
At a weekender I've used, the stairs were a comfortable 170 rise and 285 treat.
Here's the stair at Wahroonga railway station in Sydney.
Rise 145mm, Tread 360. Very easy to use.