Good stuff! (And receptive author!) Very helpful, especially in situations where you need to work on what type of mining occurs in Wave Echo Cave after completing Lost Mines of Phandelver.

Time is precious and reinventing the wheel is not an appealing activity for me. This supplement provided me a nice framework when the dwarf in my party wanted to reclaim a local mine from a band of squatting ogres. Rolling on the random tables helped us determine just how lucrutive his downtime activities would be. This is something I can keep in my back pocket for when the right situation arises.