Essential if you have a Sonos product.
No
It solved the problem of not working by using a 'compatible' adapter, the Sonos Era 100 started only after connecting it with this adapter.
Functions perfectly, and as described. Simple setup.
No
Even if you're not tech-savvy, you'll be able to get this adapter up and running in no time. The instructions are clear and easy to follow, and the adapter has everything you need to start.
Price, quality of the product.
No
Pretty normal for entry level hardware.