It manages in particular the autoplay function, which allows you to start the next song before the end of the previous one. It really brings the comfort of not having 20-30 seconds between two white music.
Additional effects are nice and intuitive overall management.
Light except on selection of music which create playlist could be more intuitive (eg check box to add to the playlist, rather than "Option> Add to queue").
Overall, I suggest, it can even replace a PC, with the right connection cables for an evening among friends :)