It kinda sucks having to interrupt a solo run midway through to go farm potsherds because you don't have enough sustaining potions for the next set of floors. The process of even doing a solo run is very time consuming in the first place, and since potsherd drop rate greatly increases past floor 100, you would want to start on floor 50 in order to farm potsherds, which both is detrimental to your score and makes it impossible to have a shot at acquiring the 1-200 achievement. I'm fine with the notion of solo runs of PotD being unfriendly to the user, since that's kinda the point, but I feel that this specific aspect is user-unfriendly for the wrong reason.