I just pre-ordered a Behringer XR12 from Sweetwater. I'm weary of waiting for Mackie to update the mixer app with features that should have been there from Day One. And the fact that it won't reliably charge via 30-pin extension cable is frustrating.
The real selling point for me, though, was additional XR12 features such as MIDI control, flexible routing, robust "plus-in" effects, built-in wifi, more channels, etc, are nothing to sneeze at.
Reliability? Time will tell, but I mainly see positive reviews for the X32 Rack. Its easy to pick and choose bad reviews for any product...