I’m using a A&J Zed R16. I go on about it whenever anyone asks as I absolutely love the thing
It’s the routing that gets me, each channel has it’s own DAC/ADC via firewire, so every channel shows up as a separate in and out in the DAW and the OS.
These little buttons allow you to send into the computer and back again at any point in the channel strip. So you could take a line in, through the lovely pres and the EQs, into the DAW, through some plugins, then back out into the desk, then out of the inserts, back through the EQs! (no idea why you’d want to) then either into the Aux busses or onto the main bus.
It might just be me, but having all of that in one device is pretty phenomenal, and it’s an A&H so sounds gorgeous
It’s also got another 16 channel of ADAT coming out of the back, one of which I run into a Expert Sleepers ES-3 for controlling the modge.