I can't wrap my head around the design decision to use over sized icons and tiny scroll bars in the same space. The scroll bars can be hard to grab and sometimes it takes more than one try to use them. It just doesn't make sense when the window could be the same size and view the same amount of information if the icons were smaller and the scroll bars bigger and easier to grab.
I know Gnome 3.16 has decided they needed even bigger icons, AND a hiding tiny scroll bar, even the details view has over sized icons.