Currently, all amazon fire tv's show up as "Amazon fireTV". When you have multiple firetv's on a wifi, this makes it impossible to know where you are sending audio. This issue is compounded as the list locations also change. The only way to find the device is to keep trying till audio comes out where you expect it and hope nobody is sleeping in the other room.
Please instead show the firetv network name! This would be a really simple change that would mean spotify is useful in real world set ups. As a software developer myself I would bet this takes about 15 minutes to write including adding test coverage.
Updated on 2017-09-10
Hello and thanks for the feedback!
A similar idea has also been suggested here:
Add your votes and comments there please! ;)