Inside a drum rack, you can have an instrument-rack chain and drag in a ton of samples to a single pad. You quickly can have a macro knob on your drum rack that will scroll through a hundred kick samples just for one kick, which is perfect for finding the right sample. Its an awesome way to setup a customizable drum rack (tutorial here: https://www.youtube.com/watch?v=839Ug8q10Is)...
However, the fatal flaw is that Simpler plays all of your samples in "Classic" mode (where you have to *hold* down the pad to play the whole sample), instead of the "1-shot" mode necessary for finger-drumming on pads.
It's such a fast workflow to quickly build powerful custom drum racks, but then you have to edit the mode of every single sample by hand...