It is amazing and really easy to use! I have been using the free version and I have no regrets at all! It all works fine and it has a nice user interface that is very intuitive. All the music that I had download has an excellent quality. Personally I found it really useful that you can choose in which format do you want to download your music because I use mp3 for my cellphone an flac in my mixer controller. Another thing that helped me a lot is that it preserves all the metadata (like title, artist, album and cover) of the songs. I also loved the integrations with OneDrive and iTunes since I use those apps in other devices too. I had only tried one other software like this and I can say that the performance of Sidify is ridiculously better, the conversion speed has no comparison if you chose the 10x speed, but it also work well in 5x Finally, I find it useful to be able to choose the name of the output file using the title, track number, index in the playlist and other attributes of the songs as well as organize the output generated by album or by artists.