4 : Compact and really convenient

I have this interface for a month now, and it's really great.

The LEDs around the dial are my favorite. When you turn the knob, it shows the selected gain, and if you don't touch it it shows the volume of the selected input/ouput. And the dial works also great to configure the monitor mix.

I haven't used the Smart Gain that much, but the input buttons also light up red when they clip, so that also helps to set the gain correctly.

So even with 1 dial you have a lot of control.

I like you can mute the inputs, but the "hold to mute/unmute" is a bit cumbersome if you want to switch it on/off quickly.

I'm using this interface with GNU/Linux, even though it's not officially supported, it works mostly out-of-the-box.

It has a nice form factor, and with the inputs on the back, it stands nicely on my desk.

I would definitely recommend this to any beginner, it's a great piece of hardware.