30 day money back guarantee, nothing to loose to try it.
https://uptoneaudio.com/products/etherregen
In the first 3000 Alex has sold I believe he has had 4 returns (going off of memory)
I am one of ones who didn't return it.
There may quite a few used ones coming up for sale when the Gen 2 etherregen is released, estimated to be this June, just to let you know.
The official Uptone threads are on this forum:
https://audiophilestyle.com/forums/forum/25-uptone-audio-sponsored/
Let us know!