You've just described my situation, though my window manager is WindowMaker, not E. The lack of development is a feature. It works, its fast and stable, and there are very, very few surprises. I've tweaked it modestly with some appearance, behavior, and keybinding settings, otherwise its a very low-fuss configuration.
And I've been using it for 16 years. That's a lot of familiarity.
And I've been using it for 16 years. That's a lot of familiarity.