Finally got to sit down for a bit and try this out, playing two rounds: once getting to the boss and dying and once dying to the mid-boss before the boss. Manage to just paste a screenshot of the character sheet in ms paint and marking it off that way instead of printing it off.

I actually enjoy this quite a lot. Gets pretty tense when it's down to the final row of momentum and you've still got 2 rooms to go. Will probably be playing this often.