Just started playing with mine....
It took a few minutes of "what the heck is this simplified functions for audio dummies" and thinking I'd got a Fisher-Price toy before realising I'd clicked on easy setup and it was possible to change to a sensible set of full user controls.
I agree about the need to learn where stuff is - although it tends to follow the logic used in SQ/Avantis/dLive.
I like the fact that you can tap just about any function on screen and control it with one or more control knobs, or the so fader movement doesn't have to rely on sliding a finger on a screen.
The external PSU has an annoyingly stiff and cheap feeling cable, but I'd guess a spare/replacement one wouldn't be hard to source.
Although not overly endowed with controls, it does do what I want - provide a simple to use, tactile digital desk that I can leave in the hands of semi trained users. The "faders only" page is useful in this regard. It has enough processing 'umph' to give the sort of eq and dynamics control you'd expect from a larger desk, and enough physical control to get around the "control tablet has lost connection" syndrome or the "someone's walked off with the iPad" palaver.
Granted, it would have been wonderful to have an interface that allowed connection to A&H stageboxes (a bit like the two flavours of Yamaha's DM3 - with or without Dante) but I guess that adds considerable cost, needs more back panel space, and potentially undermine sales of higher models.
Overall, it's looking good. I'll try popping it on a couple of powered speakers and putting some musicians through the system to see how it handles a proper live environment.