I have problems with lack of variation. The same songs keep coming back over and over. This is true for the weekly discover-list as well as any playlist-radio. It keeps presenting more or less the same songs over and over.
I have many playlists with a large variation of musical styles and genres.
From my perspective it seems that the pool of songs it suggests new music from can't be more than maybe 200 songs in total. Because that't all it will present to me.
Sure, I can search for and find new music. But the music suggested by the algorithm is more or less without variation.
For the two past weeks I have had to mark the entire weekly discover-list as "do not like". Every single song on the list was garbage. Two weeks in a row.