I have been using Luakit regularly for a few weeks. The truth is that for those of us who are used to using vim as a text editor is a little wonder. If you use awesome and you like Lua , it's the perfect combination.
However some pages do not take into account this type of browsers and the dependence of many absurd calls to javascript to navigate through the document force us to use the mouse.
To the subject, I'm quite clumsy so I have not found a way to select what frame I want to do or scroll from the keyboard when I browse and I have to use the mouse.
For example on a page with two frames, if I want to move the scroll of any of them I have no way (typical javadoc documentation page or doxygen , with the classes in the left frame and the explanation of the one you click on the left).