The Google Docs Equation Editor is mostly okay, but Docs acts stupidly around the formulas.
Suppose you put the cursor OUTSIDE of the formula, adjacent to the formula, like so:
[formula]|
(The pipe is the cursor.)
If you hit home, you should be taken to the beginning of the line, like in every other fucking thing you work with, right?
Docs takes the home keypress and puts you at the very top of the god damned document. This is lots of fun when you're on page 23 of a 40 page document.
Shitty workaround: put a space after every formula, to lower the chance your cursor is adjacent to the document.
Also, GDEE won't let you resize/highlight the equations unless you also select some non-formula test.
Also, having a GDEE equation on a line makes the cursor shift in unpredictable fucking ways, on both axes.
Also, GDEE has no default keyboard shortcut. You need a user script or to use a macro program.
It's almost worth just using the codecogs online latex editor to make images and then just paste them into GDocs, but that's a huge fucking pain in the ass in itself. It would be slightly less of a pain in the ass if you could right click a web image in GDocs and change the URL, since then I could change the codecogs equations in-line, but as is, having to do the whole alt tab, [do stuff], copy url, new image, paste url thing is a huge amount of workload overhead.