I used to use powerline adapters (Branded BT) between my NUC and my Devialet. I never had any issues whatsoever with reliability, and to my ears, the sound quality was no different to having a direct wired connection.
NUC i5/ROCK/Roon Lifetime => Original d'Atelier CoreInfinity #066 => Transparent MusicWave+ =>Wilson Sophia 3