You can also click somewhere in the PDF view and 'jump to source'. Used it a few times when polishing/debugging a LaTeX document, I generally don't use it for writing though.
(I prefer to do all my writing in Vim).
That's an argument against using it, it seems to me. Having the words jump around as you type them is maddening.
When I tried last time a few years ago it was not as complete as LaTeX is, atleast for me, who is much more proficient in LaTex.