In addition to the EZD2 defaults, I have Hip-Hop, Latin Percussion, and Reggae EZX’s. I use them all constantly.
My favorite feature of all is the ease with which the user can edit patterns. I do this all the time, adding and subtracting pieces as I go along.
I’ve played in several bands with live drummers who used vibraslap. It’s a nice touch when used sparingly and if timed right.
I find it absolutely weird that in any EZX that has vibraslap, if you go into edit pattern mode and try to add vibraslap you can never add just one: It’s usually 8 (!!). I have never known anyone to use it that way. I usually go ahead and add it then clear 7 of the notes (and invariably end up moving the ONE I’m going to keep).
I have to wonder whether this is a glitch with the algorithm or whether the programmers really don’t know how vibraslap is used. It’s like a really hot jalapeno: You put one on the side of the dish (not 8). 
Sorry for the vent. I think EZD is outstanding overall, but this gets on me nerves. 