Some people may want to find manga they know will have a lengthy experience and I even heard from some people I know would rather short series to finish quick not dragging too long before the ending. However, can be quite a pain trying to not only find interesting manga but also the length we want, like having to dig through all those 1 Volume (Complete) or 2 Volumes (Complete). I think a length filtering would help with our experience, maybe allow us to set a range of how many volumes we'd want a series to have.

11 months since I asked for this and I still want it.

3 years since I asked for this and I still want it.

+1
I can see myself using it a lot.

4 years since I asked for this and I still want it.

I can definitely see that being a thing.