I have been 100% behind Sonos for ~20 years with major investments in Sonos products and some significant Sonos stock shares.
However, the latest Sonos iOS App is a disaster and is at best represents a beta test version for select beta test users. No doubt this well eventually result in an improved UI experience. 

The beta version forced on everyone is a total disaster. This marks the 2nd major Sr. Management screwup in recent years that I am aware of. However, the 1st screwup management was wise enough to take shift action to correct the situation. This 1st screwup was there initial promotion of providing a 30% discount in exchange for allow Sonos to disable your older noncompliant HW that would not work with S2 App. The public quickly altered them that this was an insane unacceptable solution and they quickly changed their policy to not disabling the S1 older equipment and provided the 30% discount.

Here we find ourselves again, in what is even a much worse situation as a result of forcing this beta version App on the general public that has many features missing that is key to what has made Sonos product a step above all competitor products.

The only responsible solution is for Sonos to realize and admit its failure quickly and to rollback to the previous S2 version. We should not be held hostage for months or longer for this latest App to be developed into an App that meets the baseline of supporting at minimum ALL the functional features of the previous version.

Sonos Management and CEO, please wake up and correct this situation. Ignoring this longer will only cause your customer base which are largely long term customers to stop trusting or investing in products.