I for one am very interested, as are many others who are in the PS Audio digital ecosystem.
Many owners of the PS Directstream DAC long ago became disenchanted with the internal Bridge II card and migrated to the Matrix X SPDIF 2 DDC to convert and re-clock USB from a computer or Nucleus to I2S over HDMI, even at the cost of losing the second MQA unfold.
In my case, I am have been using the Nucleus+ via USB into the Matrix, but many folks have found that an Ethernet connection from the Nucleus (or computer) into a dedicated Ethernet (or wifi) Roon endpoint is sonically by far the better way to go.
So no, this product is clearly not for everyone--and far from it--but if you are happily in the PS Audio digital ecosystem, right now you can't wait for the AirLens (to say nothing of the Directstream Mk. II) and have been saving your pennies so as to pounce as soon as they begin shipping.
And, for the PS Audio-curious, there will be a sh*t ton of pre-owned Drectstream DACs and Matrix DDCs hitting the Audiogon listings later this year at very attractive prices...