I have an Eversolo A-10 in my system (ARC LS-28 and VT-80SE) and am very pleased with its build quality, sonics and overall capabilities. I've had no issues with it but there may be some folks who have trouble using all of its features due to relative complexity of its software. It's more like a computer than a last generation DAC. It integrates seamlessly with Roon using Small Green Computer Sonic Transporter I9 as a Roon core. I found the software overall excellent with updates every few months so no issues there. Since I have an IT background, I may be more comfortable with its extensive features than some folks. What sort of issues are folks running into that requires factory support that your dealer can't provide?