I would like to add my support for the ENO. I also have the Ag version, and the Ag cable, which adds even more to the sound quality. I have yet to find any drawbacks. Both ENO and cable can be bought as a package. It’s not cheap but I think it worth the money.

I have the Etherregen too, bought before the ENO/cable. In my experience the moat side of the switch used with the ENO is too much, but the latter sounds really good connected to the ‘normal’ side.

Main system: NUC, Roon, Network Acoustics Ag ENO/cable, 218, 5200SE, Townsend Podium, Sennheiser HD820/800s, Sennheiser HDVA 820 amp.
Mobile: Explorer, IE800
Kitchen: MS200, F80