"Dorothy was smart"
In stark contrast, I certainly was not - I only ever found the entrance and a single dead end. Perhaps, it is the grid-based movement that threw me off, and I missed a crucial turn somewhere, but the elevators seemed to just lead into dead ends.
Even then, the game felt atmospheric - such is the power of an intro text, I guess! The dreamy state of crawling through a cave at night was captured perfectly, and I almost wish for this to be expanded into a proper aimless dungeon crawler.