From Montana's comments about weight, I deduced he's talking about live, on the gig use...

Cubase, Logic, all those other DAW's are primarily designed for studio use. Ableton Live, as you can see from its' very name, was built from the ground up to do everything live, onstage. It is used by some of the biggest names in the business to trigger backing loops for mega-buck shows and theatrical productions. Every cue point, sub-mix, MIDI Part, etc. can be triggered by any MIDI command you care to assign to it, all in sync (or not, if you want!), all controllable from either Akai's custom control surface for it (or other cheaper alternatives) or any MIDI command your keyboard can send out.

From setting cue points and loop points in a simple MIDI file, to complex multi-track audio productions which can be controlled simply from onstage, to looping your own live audio alongside the MIDI loops, Live can do it all and so much more!