I must be weird, but I liked the pre-1.4 lyx better than the later revisions. Sometime between 1.4.x and 2.0 the previously functional keyboard shortcuts stopped working, and at the same time the same functions became available from menus and toolbar.
But oh my, did their graphical equation editor save me from a lot of headaches at university. I could produce a clean and printable version of absolutely anything, as long as I remembered to set the math mode blocks to be larger than the surrounding text segments.
Fluid keyboard-only editing of typeset equations is Lyx's most valuable feature to me. I'm sure Lyx was inspired by some prior art, but I haven't come across another app that allows me to write up lecture notes from a blackboard with the speed of a stenographer.
I would love to see a web app that aims for the same thing.
The keyboard shortcuts are completely editable if you go into the various .bind files (When similar things happened to me in the past, I made a couple of quick fixes to those and got keyboard shortcuts working beautifully again).
But oh my, did their graphical equation editor save me from a lot of headaches at university. I could produce a clean and printable version of absolutely anything, as long as I remembered to set the math mode blocks to be larger than the surrounding text segments.