8:2 The true believers are those whose hearts tremble when GOD is mentioned, and when His revelations are recited to them, their faith is strengthened, and they trust in their Lord
I'm a Quranist, but in my opinion, Sufism is the most respectable branch of traditional Islam; their dhikr still deeply resonates with me, as my heart would tremble when God is mentioned (if not, then I'm not doing well). That's why while this music is very repetitive, it doesn't really feel repetitive. The instruments are also well played and the melody is well composed.
One thing to note: Please don't listen to this music while doing other things; you will get numb, since you're trying to focus on other things and thus trying to put the dhikr in the music to the background. Only listen when meditating.