Preamps are quite decent. Best thing is that the gain knob's resolution is quite high. And this thing is built like a tank.
Some negatives are: It doesn't come with a USB power, you have to buy your own; doesn't have a software interface to adjust settings or add FX digitally (other than sample rate and loopback); and I have some issues on Windows 10 on start up, sound device not defaulting to it (I have to restart the unit via it's power selection switch sometimes so the system recognizes it).
Despite it's perks and it's outdated and banal looks, it's a rather decent sounding, well-built and feature-rich workhorse. A good option in it's class.