...because I am new to Eurorack and maybe I just didn't get the hang of the Z5000. I am using it in my setup together with an Arturia MiniBrute 2S, and purchased it mainly for its reverb and delay capabilities. 
 
To be fair, I tried several things as input, from simple sine and square waves to more complex patterns and tested all the various effects; sometimes it was hard to determine how those sounded differently. 
 
Pros 
- Diving into the menus is fairly easy, only three buttons needed. 
- One 8 HP module for Delay, Reverb and other stuff is pretty cool. 
- Stereo Output, should you need it 
- Build quality 
 
Cons 
- To me, quite a few of the various effects sounded very similar 
- The reverb effects weren't really what I was looking for (very long reverb for Ambient music) 
 
Still, maybe it'll work for you.