U-Phoria UMC204HD : Amount of functionality in this thing is crazy

Initially I was looking for some cheap interface to use at my workplace for calls and I was quite skeptical to be honest. But after using it for a while and comparing to competition like Steinberg or Scarlett - this thing is insane! A/B switch allows you to switch headphone output between channels 1/2 and 3/4. It allows to perform quick A/B comprisons between 2 versions of track simply by playing one version of track to channels 1/2 and second version to 3/4. Ability to freely adjust direct monitor / mic ratio is great. Ability to select mono/stereo direct monitor is also great. Analog inserts are even better. The way how MAIN out is affected by direct monitor knob unlike RCA outputs makes it kind of "4 and a half" channel interface since you can realistically play 1/2, 3/4 and direct monitor mix.

Overall amount of really clever engineering in this thing is superb. I definitely prefer it over my other interfaces which actually had cost me much more than this one. I'll recommend it to everyone.