I liked Deezer more thanTidal for the UXI and better algorithms for similar/associated artists. But I like Tidal’s Master or HiFi quality option where available. Currently using Tidal for a couple of years now. Very few issues. Maybe the once in a while a small millisecond skip/latency in a stream.
For some reason I thought Deezer had more choice but it seems I was way out on that one? ie
https://www.audfree.com/tidal-music/tidal-vs-deezer.html
Part 3. Tidal vs Deezer: Music Library
When it comes to Tidal music vs Deezer music, both have millions of available tracks. Official figures show that Tidal offers 70+ millions songs while Deezer collects 56 million tracks, playlists and podcasts. So to speak, Tidal almost covers almost all types of music on various filed. Both what you find and don’t find on Deezer can be serached on Tidal.Given this perspective, Tidal gives the edge over Deezer.