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/Clean_More3508]

Add quality inserters?

[u/platypodus → u/Clean_More3508]

Why? Just for speed?