Here's what I know about it so far.
I have a DM-10 here and I'm officially a big fan. It's 12" wide, 7 &1/2" deep, and 2" tall.
As usual, the factory presets needed help to work best with my Zendrum, and I used some Zendrum tricks to get more out of it than Alesis intended but- it's REALLY talking, now, with four-way velocity splits sent from the Z4, left/right hand voiced triggers for each tom, layered Kick and crash to finish up the fill. Big time movement in the rides and hihats beyond what one note can produce, then filtered the two sound layers so there are actually eight sounds changing from one Zendrum trigger. That's really deep to have moving under your fingers and very playable.
Each Note/sound is comprised of two layers in similar fashion to the DM-Pro, but the operating system is nice and simple to tweak each sound, name, and save. I did my editing on a keyboard first so I could isolate every note and make four sequential notes play soft/medium/loud/HOT from one trigger so the timbre is always changing with every strike, therefore the expression is pretty amazing even when compared with larger computer software libraries.
Both the Alesis and the Pearl units are set up to be overwritten with other third-party software sounds,
and they appear to be identical in function but not in the exact libraries but there's enough cool sounds in either stock library to cover my needs for a while.
I'm happy to have something new to recommend to Zendrummers that is easy to understand and edit, with the sounds easily tweaked to sit in a mix nicely. I'll try to share my editing and give some tips for personalizing.
Cool thing is- I can sysex another unit from this one and do the initial Zendrum set up for you. That's a good starting point to work from to take the headache out for first-timers.
Plug and PLAY. I LIKE THIS.
Thanks for sharing the links, these are both good sound engines for the Zendrum.