I needed to move to glade for myself, because for me it was hard to read the
code as more the project growthed. I like how simple I can create GUI's in gtk.
But I experienced by myself, that I needed to add xml manually. Especially when
I want to rename list store entries without deleting them (or if I want the
change the order). Also I needed to set the text of linkbuttons manually. But
that was the only manually edits I needed to do, so I'm really happy with
glade. Also I can add / rearrange / modify the GUI rapidly without the need to
touch my code.