With adaptive image we were able to decrease amount of transferred data to 14% from desktop view. So mobile browsers even with low speed are able to have good browsing experience.
Size of all images without adaptivity in desktop view is 1,2MBytes.
Size of images with adaptivity in mobile view is 0,17MBytes.
So if you are making really visual (lots of images) website with responsive design you should really consider adaptive images. There’s no use of responsive design and mobile view if loading a mobile page takes forever.
WTF! I thought my spotify client has some strange setting or a bug, but no.
Employee of Spotify answered:
We have indeed changed how search results are played. As it was before many users would search for a specific song, listen to it, and then just leave their computer on streaming (without actually listening).
However, we are looking into how this has affected making a search into “Current Playlist”.