Come on over to the dark side.
I think this is what bothers everyone with a certified aircraft. The experimental are sharing the same airspace with ADSB Out equipment that is a lot cheaper. Not sure that makes much sense! If the accuracy is good enough for experimental to fly in Class C, why can’t that same equipment be used in a certified aircraft for flying in Class C. And I am only talking about ADSB Out. Not other avionics.
I installed it and had a couple of initial issues. First, the echo app would not run on my note 4 phone; a few emails to uavionics support and they released a version compatible with my phone. Second, the wiring harness supplied by the vendor had 1 wire in an incorrect position so the echouat failed the initial ads-b compliance report in 2 categories. A few emails with uavionics support and they sent a new harness which resolved that issue.To bring it back on topic. OP why are you selling? Figured it be a valid question for those interested in the item.