The ONLY reason I would consider getting the ACE over any other headphone is the TV swap feature.  I still like my 5 year old Bose Quiet Comfort headphones and would only upgrade for a good reason.  Outside of the TV swap feature, I don’t think they particularly excel in the areas of sound quality, comfort and portability compared to the likes of Bose and Sony.  

So if that TV swap feature is not reliable then its a waste of money.  Shame.  I guess you could always wait for a Sonos software fix - I mean how can that possibly go wrong?

FYI Gubes..

I have my Arc set up with 2 Ones and a sub - TV Swap has never failed.

Simply turning the beam power off and on seems to have fixed it for me. I can now swap the tv feed from beam to ace and viceversa.

th