I would like to see the venerable Brush tool get some love. It is cumbersome to see and adjust Hardness: you must use a pulldown menu just to see the hardness, and a slider to adjust it. Why not put the hardness setting in the Options bar next to Opacity and Flow? Moreover, Opacity and Flow have keyboard shortcuts (number, and Shift-number respectively). When the Brush tool is selected, why not use number-Option/Alt to adjust the hardness? The key to the left of the "1" key can be for 0% Hardness. This would be a HUGE time saver.