This means my 828MK2 Firewire interface is pretty much useless, (or is it?). It is also overkill since I've sold all my hardware synths except for my Korg Kronos and that has USB2 MIDI/Audio. Swapped my guitar amps for a Helix - also USB MIDI/Audio.
The only thing I need an interface for is microphones and monitoring and I have outboard preamps. I'm also now very space limited so the desktop gizmos with 4 outs and a knob for monitor switching/control are pretty attractive. I could retire my space eating BigKnob.
I see units from various brands ranging from about $150 to $1500. Is there so much of a difference? Pros and cons on various models appreciated.
Yes, I realize this is probably a bit like heading down to the marina and asking for opinions on anchors.

Looking at
El Cheapo FW400 -> USBC adaptor (is it really likely to be reliable for time critical audio?)
MOTU M4
Focusrite Scarlett 4i4 4th Gen USB Audio Interface
Universal Audio Volt 4 USB-C
Audient iD24 10 x 14 USB-C Audio Interface
Something else? Key features I want USBC, 2 sets of monitors w/switch and volume knob, 4 inputs.