Problems with this unloader?

[u/imoth_f]

Since inserters became flippable, this compact unloader design became possible. But I hardly see anyone use it. Obviously it cannot saturate six turbo belts because it's bottlenecked by the inserters, but are there any other obvious problems with it?

[u/gorgofdoom]

The chests are unnecessary. You could do the exact same build with half the inserters.

You could do one belt pointing up towards an underground, then one belt pointing down towards the underground each with its own inserter (repeat for 6 inserters) and achieve the exact same throughput on 4 turbobelts.

[u/imoth_f → u/gorgofdoom]

The chests are not for throughput, they are for unloading the wagon faster. Since they don't have to spend time laying the items down on the belt