Ableton can be picked up and used very quickly - helped by the tutorials, which are interactive and take you completely by the hand. They really are like having someone look over your shoulder and tell you what to do.

Live will generate great results very quickly. You may, in future, get frustrated by a lack of any kind of synth, but if you have enough loops you'll be laughing for a long while. You can always buy VSTis anyway.

Reason + Live is a seamless combination that brings me much joy...