I’m the opposite, I never really used GPM’s recommendations because I knew what I liked and had tons of ripped CDs in my collection. After we all ditched MP3s and went to streaming I still stuck with what I knew. I only switched to Spotify about 2 years ago and it has opened me up to a bunch of smaller artists in Europe (I’m in the US) that I would have never found on my own. One of them (Green Lads) I’ve listened to for 2500 hours this past year thanks to their recommendations.