The Universal Audio Volt 1 USB Audio Interface is a compact, portable, and well-built device that consistently delivers high-quality sound. Users appreciate its solid construction, good plugins, on/off switch, MIDI input/output, and decent analog circuit. The preamps are praised for their high gain and low noise. Moreover, the headphone amp is powerful and clean, with a separate volume knob. The driver installation is reportedly effortless, and the unit works flawlessly as an output for studio monitors.

However, some users mention minor drawbacks. A few find the connections slightly annoying, and others comment on the lack of headroom or input mix knob. Additionally, one user received a dirty, scratched, and seemingly used product, which indicates a potential quality control issue during shipping.

Pros:
1. Compact and portable design
2. High-quality sound
3. Useful plugins included
4. Solid construction
5. On/off switch
6. MIDI input/output
7. Decent analog circuit
8. High gain, low noise preamps
9. Powerful, clean headphone amp with separate volume knob
10. Easy driver installation and setup

Cons:
1. Minor connection annoyances
2. Limited headroom
3. No input mix knob
4. Potential quality control issues during shipping