That convenience for mobile while being decent for desktop is precisely why I'm interested in them! Thanks for your impressions btw; One of my local hifi stores said they have a high likelihood of stocking the Penrose since they stock most of the Audeze line that's still in production, including the Mobius. I'm hoping they bring it in for demoing within the next few months.
I'd really like to try it out against the various planars I have, especially the iSine10 and Aeon 2 Closed to see how much of a sacrifice in sound quality for wireless convenience I'd be willing to give up.
And versus a bluetooth dap + iem setup