Admittedly I was mostly skeptical, as my experience with USB mics has been that they don't compare with Pro-Audio level microphones -- thin, overly bright, high noise floor, etc. However, the MK4 USB is Surprisingly competitive, even when A/B'ing against large diaphragm condensers, like Neumann U87's and TLM 170's, and AKG 414's. But when not A/B'ing head to head, the results are quite good. I A/B'd against the Apogee Hype Mic and I like the MK4 a little better. Also, the MK4 has no buttons or level adjusts that can be inadvertently changed. Just plug it in and it works. The Only negative, is the "proprietary connector" to Lightning or USB 3.0 cables that are needed. I wish it was a standard USB mini to Lightning or USB 3.0. And finally, almost all USB mics come with very short cables -- probably to reduce noise or signal degradation, but a bit of a hassle.