There are way to many ads, I get one playing literally every other song. The algorithm for the random shuffle changes whether you're a premium member or using a free account. Free accounts will shuffle songs you don't listen to a lot more frequently. If you're using a free account you cannot go back to a song you skip. You cannot look at your playlist unless you edit it. The free version of this app is complete trash and there are paywalls for really basic music player functions.