I want to at least give them feedback somehow because there currently are a lot of things wrong with it and a lot of things that should be improved (even subtitles don't work on their native Mediaplayer)
So yeah, how can I have an impact as right now I don't even know where I can send some feedback that'll be looked at.
The 4S TV (55") is only available in Europe afaik
Xiaomi isn't really known for listening to constructive feedback.
They're hardly even known for listening to a unified scream from their community.