Roon Radio vs Focus on Similar

In past few months I have observed that Roon Radio is surprisingly good feature for finding new music. I appreciate it may not work for all genres, but for World Music, Jazz, Blues, Rock etc it does come up with interesting suggestions, which are indeed similar to what I was listening to.

That’s why it is so much more puzzling to me why “Focus on Similar” feature in Roon usually gives me really poor suggestions on many occasions.

Is anybody else experiencing similar issues with “Focus on Similar” feature, while at the same time getting rather good suggestions with Roon Radio?