The Roland mesh pads can be triggered useing brushes (with the standard "stirring the pot" technique) but certainly not with the level of dynamics you can get with an accoustic snare.
There is no way to use brush technique on the rubber pads!!
E-drums are good for music with a solid back beat (rock,pop, country, funk) and even jazz/fusion can be done well on e-drums, but when you get to straight ahead jazz or bebop, I don't think so.
I own a set of Roland V-Drums and have owned 2 other e-kits. I've played e-drums since the 80's (anyone remeber Simmons) and I've owned several accoustic kits.
I would never depend on e-drums for jazz.