The user interface of Ableton Live is simple, straightforward, and well organised; I never have trouble navigating the application, and everything remains where I need it. The quality of the interface is made even better by the arrangement/sessions views which add to the amazing live performance features of Ableton Live.

It is a very convenient program when it comes to making electronic music and mixing it in the box. Its 2 layouts are a big advantage to exploit when it comes to playing your tracks live or while making said music. Its built in audio effects and instruments are always a good starting point when making music.

Are you serious? There are too many great ones if not the program itself; it's like saying what's your best feature of life. We are all great at more than one thing, I would have to say the program itself. I don't believe in judging people's capacity on what they can achieve, because it's truly unpredictable.