I love its simplicity. It's easy to build a track, using its native functionalities, such as the integrated timestretch

I have used other softwares similar to Ableton Live but I feel that Ableton Live has been the easiest so far in producing music, and what I mean is the "Session View". With this you can be like a one man audio production team, from the composer to the audio engineer!

Its powerful way of editing music live; its possibility to integrate VSTs