I often use the seat symmetry one as the GF is a short arse and has quite a forward seat position and I find it looks wrong and is awkward when she isn't there so i tweak it back and saves going round the other side to do it.
I've memory seats and so i set her up a couple of profiles as she complained the seat was never right when getting in.
Also when we did a long trip, i set the symmetry to transfer over my seat position and then stored it in the passenger memory, so instant comfort when switching drivers.....I've a couple of other cars and now get really irked when someone moves the seat and i don't have memory as the car feels wrong. The 8's really spoil us