I keep reading that Eversolo has poor customer service, but very few of those comments are from people who actually needed customer service. I have the Eversolo A-10, and previously had the A-8, and the both worked flawlessly with no need for customer service support. I enjoy both the sound and user experience of the A-10, although I have it paired with a Backert Labs Rhumba Extreme pre-amp. What did you find lacking in the streamers you auditioned?