Sidify is the best softwares to manage your library of songs and download them to your device, and one of the best softwares i ever downloaded (coming from a guy that has looked for a program like this for literally years lol)! It's interface is very intuitive and easy to use, and the conversion speed is very fast. I'm only using the free version, and I am fully satisfied with what it provides me. I personally, use it to convert Spotify playlists to mp3, to then put it on a pendrive and listen to my favorite songs on my car. The quality of the songs are excellent. I have been wanting to download Spotify songs to a pendrive for a very long time, so I have installed a large variety of softwares. Sidify really is the best in the market today, with its high personalization and features like preserving the metadata from Spotify (like album, artist, and album cover) and integration with other platforms such as Itunes and OneDrive. I don't find very use for the Itunes integration 'cause I don't have Itunes on any device of mine, but I find very useful the integration with OneDrive, since it let me save my songs on a safe platform.