When placing a stairwell, the receiver always gets placed on the higher or lower floor facing the same direction, which is unintuitive for a lot of people and can be difficult to work around.
If possible, I think it would be much better for the recipient doorway to simply conform to the facing direction of the wall on the recipient floor. I figure parallel placement should be doable at the very least, since you can match the exact space of the wall tile-to-tile and just flip the doorway, but it would be nice if you could get it to work with perpendicular walls too, somehow.