I really like my Elmar, 1967 version with the dual scale, meters and feet. When the lens is focused, yes the aperture scale turns with the barrel but the aperture doesn't change.
My only complaint is the infinity lock which does annoy me when the focus point means that you have to press the lock to get the focus to turn above the detent. Apart from this I think it's a great lens, very nice bokeh and really feels solid and well built. I paid 150 sterling for mine and it's mint. Quality lens.