Mine is fully burnt in and sounding terrific. It’s quite expensive but worth it I think if anyone wishes to significantly upgrade their streaming experience.
Thanks for your comments about the use of a second filter. NA had already mentioned this possibility to me (

) so it’s good to hear your experience. My network is simpler than yours and my ENO filter is directly plugged into my 818 from a second switch using the AG cable, which is the approach recommended from NA I believe. I’m curious about why you have done it differently? What cable do you use to connect to your (Meridian?) pre-amp/processor?