Yesterday I sent in an answer to the form where I mentioned how the miner setups are a bit tedious after a while.
I was thinking about a bit more and came to the following.
Perceived problem 1: with rotations included it could take more than 100 button presses to place down miners on an 8-furnace field (which is usually 1-2 shapes worth of material). (32 miners + 0-3 rotations each, then you get have to add belts)
Perceived problem 2: Once a miner is placed down and you want to make modifications you have to pick it up, rotate it, then place it down. (So instead of 1-3 rotation action, you spend 2 mandatory actions +1-3 rotation actions).

It might would be better to reduce the number of actions by
1) allow placing down multiple miners by dragging over a rectangular area and filling all possible locations and
2) allow rotating miners after placing them down (this has been suggested before), without picking up.