If you type a UNC server name, eg \\MY_SERVER, into the WDE address bar then it will not accept it. Instead it just refreshes the current directory.
When typing a path into Windows Explorer you get a drop down with all possible paths. This doe not happen in WDE.
Switching from layout and having one pane active, creates weird empty spaces where the second pane should be.
When opening the location with the overview of all HD drives and removable storage devices, the location shows the hidden link. Something like ::{1sdfg2345gh-678hgj9-98k76iu-yk543} In normal explo...
Maybe adding a statusbar with some important information.
When I close the program while it was maximized and I then restart the program it isn't maximized again. Simply saving window state will do.