If you check out the Avalon threads, you see that people are receiving devices that have been used for months. They are dusty with melted connections, damaged capacitors and broken parts. One person has an unusable device due to damage. Avalon doesn't respond to return requests. Pay several thousands of dollars and there's a chance they'll ship you electronic waste.
I've read reports of damaged or dusty units (Have you seen the air quality in China lately ?!), and returns that were repaired and sent out again, but have not heard anything about them being used for months prior to shipping out.
Curious indeed. It would seem that there are small handful of bad/problem units, and for the most part, the bulk of the shipments were handled reasonably.
Not getting responses to return requests is troubling.