A bit of further investigation suggests that their partner who provided the integrations went bust which is why stuff like Tidal which was mentioned in the reviews doesn't work.
Alexa still works and it's fine as DLNA server so I can send Tidal to it that way so will probably keep it.
Do you have Tidal natively working with the Libratone stuff? The only sources I seem to be able to see in the app are Spotify and Internet Radio.