"the game will autosave your progress each floor"
You forgot to mention it also autosaves after a dice roll and whether or not you go upstairs or downstairs!
Also, why not have more dice rolls in higher floors? Some floors for no reason have more than 1 and can even turn a down staircase well to an upstairs one if it passes the check. It'd make things slightly less frustrating. Seems like such an arbitrary decision.