I know it's not the same as acoustic and will never be, but wondering if anyone on here has used them in a live situation and please tell me the pros and cons, and could the audience tell the difference... 
Since no one is responding much....
I used the Yamaha DTX II Xtreme (2 models back from current) V-Drums competition in church services for nearly 2 years. NOTE: The new Yamaha DTX kit is the best electronic kit as far as feel ad response on the market. They really got they head/pad material right this time. And the Zildjian acoustic Electric cymbal kit is a must add-on to any electronic set-up
Pros:
As with V-Drums and other electronic kits you have the ability to program and customize sounds and have multiple sounds per drum (including the hoops).
You don't have to worry about stage volume and playing behind glass
You are not as dependent on the sound man because you have volume controls on the brain and personal monitors is you have them plugged in.
CONS:
you don't have the same rebound and feel... especially on the cymbals unless you are rocking the high-end Alesis or using the new Zildjian electric acoustic cymbals and module (which I highly recommend).
You lose the atmospheric elements of moving air around from hitting acoustic drums and cymbals.
NoteS:
To get the best feel tension the heads like you would acoustic heads to get a stiffer more drumhead like feel/rebound
Invest in a Thumper so that you can feel the low-end tones from the kick etc in your body through it being attached to your throne.
Run the electronic drums through an amplifier then to the soundboard to get a bigger more powerful sound otherwise the other instruments in the band will drown you out in the house mix
use lighter sticks - maple preferred so you don't damage the triggers....tha's expensive
