I have been using Apple Music for close on a year now. At first I had to root my Samsung S4 and install CyanogenMod to run Lollipop, as this was the specified Android OS at the time. I reverted to the stock Vodacom/Kit Kat setup late last year, and no issues. At R59.99/month, I have been able to explore new music again. I have an eclectic taste and have been able to find everything from modernist organ music composers like Olivier Messiaen, to unblack metal from Sweden, to Tracey Thorn's 2018 offering, "Record". They also have curated playlists, and band recommendations, but mostly I like to find things for myself. With pre-releases, you're usually able to download one full track, and then you wait until release day. It took a while to get Chris Rea's latest album, and I suspect it has to do with licensing agreements. The interface is easy to use, and you can create your own playlists. I like that the album covers are a decent size when you view it on a cell phone. On the downside, sometimes I find that it takes a moment for Apple Music do link to my Library. I'll launch Apple Music, it says it's linking to my Library, and then there's nothing. What I do then is press the power button to go to my S4's home screen, and when I log in again it's all there. It could be that it takes a moment to index the roughly 14GB of music I have stored offline on my SD card. The content is encrypted, so you'll see your disc space decrease but you won't see the files on your device. On a Mac, you can see the files, but can't access them, except through iTunes (the For You tab). You also have two options; either to stream (WiFi recommended) or download an offline copy. What's neat is that it syncs between all your devices. I have iTunes on my Mac, and the albums I have downloaded on my phone also appear there. In this instance, it's only an entry in my Library database, so if I want to play the album I have to stream it, or do a download onto the computer. A great thing is that you can try the service out for free, for 3 months before they start to bill you. When you sign up, you have to enter your credit card details. If you're going the Apple Music route, consider getting yourself a high speed SD card of at least 32GB. My Samsung S4 only has a 16GB SD card, and I'm always managing my disc space.
In short, in my experience you can't go wrong with Apple Music.