Notable input lag makes text editing extremely discomfortable and annoying. When I hold "backspace" to erase a bunch of letters, it removes more text than needed, that's extremely bad. The other features work quite well (except, maybe, "databases") but I'm having a really bad time trying to just type a simple note. Isn't it a function that needs to work flawlessly in an app like this!? I'll correct the rating of this review when you fix this terrible behavior.