I am using the product purely for midi triggering, so I cannot comment on the built-in sounds, let alone all the other features related to stand-alone operation.
What I can say is that the options for adjusting the dynamic response are very limited. You can only chose between presets (trigger wide, -normal, -narrow, hands, fingers). There are no velocity curves. The 'trigger wide' setting is good for soft playing but you have to hit VERY hard to get the maximum response. The 'hands' setting is too sensitive for sticks since a moderately hard hit will saturate the velocity.
EDIT: There is a way to edit the sensitivity after all. My mistake, didn't find it in the manual first time round.
You should also be aware that the pads are very soft so when you play them with sticks you get a weak bounce.