Kontact 3 is quality! You can do loads with it, although ive only really touched the surface. Been using it for about 6 - 7 months now and have found use for it in all of my our tracks. Its great for messing around with samples! Native Instruments also include 8 (i think) video tutorials with it which are very helpful but have a gay american retard doing the narrative and i don't think he could be anymore of a gay american retard!!!
Its a big bit of software and is used by plenty. Baron's a huge fan for one!