If it's a realtime loop manipulator you are looking for to write tunes and/or play live, and you are on a limited budget, this is the tool you need. You can create new loops or preview already made loops directly within Liveslice before mangling them. Slice, pitch shift, reverse, set random playback of slices, mute, solo, pan, volume control- these, among other parameters, are all assignable to your MIDI controller and computer keyboard for quick and easy realtime loop manipulation.
Another great feature is the ability to save files within a Liveslice bank so there's no need for file hunting.
One thing to note, at first i had to get used to how certain settings affected the way a loop played back. Experiment with different settings between "Events" and "Beats" as you can get sounds you didn't expect. Since Liveslice is intuitive, there's no steep learning curve. I had to open the manual only ONCE.
As far as layout, it's extremely simple:
1) The Slicer view displays the loop to be manipulated
2) The Arrangement view, as the name implies, arranges all loops to their exclsuive track
You can have the same loops in multiple arrangements each having their own variation or have different loops set to each arrangement. This versatility makes way for interesting song structures.