Only purchased the double home mini pack to control Philips hue lights and to play music in multiple rooms. With plans to purchase more later specifically for the multi room music function. I was aware the mini speakers weren't the greatest quality when playing music. I wasn't concerned because I was going to connect each mini to a different Bluetooth speaker. Bluetooth playback was awful for both minis contecting to any Bluetooth speaker. Choppy and stuttered playback on almost every song. I reset the minis, removed and reconnected every Bluetooth speaker with no improvement. I tried more than 1 music source, not just Spotify.
I connected other Android and apple devices to my existing Bluetooth speakers without issues. A quick Google search will tell you this is a large and common problem. I would not have chosen this product knowing that.