Frequently criticized
The surface only has one layer of faders, so users cannot get 16 inputs at once without switching layers. One commenter suggests two input layers plus two output/aux layers would be an improvement.
Frequently criticized
A commenter says Behringer should have added a couple of mic channels and a stereo source directly on the X32 Core, believing this would have significantly boosted sales.
Frequently criticized
One commenter compares the Core to the X32 Rack, noting the Rack effectively includes an S16 stage box and TRS connections for about $400 more, and feels 'something went wrong with the pricing.'
Generally negative
A prospective buyer questions whether Firewire is actually included, since pictures they have seen only show USB, and the Firewire/USB card appears to be a separate add-on item.