As well as regular gigs, it looks like something that would be very handy to bring on a macbook if I was going on holiday, and connect to whichever keyboard controller was available locally. As an outsider to VSTs and the likes, something like the Akai Advance makes this look less daunting. It helps to remove the feel of starting from scratch. I will aim to browse through your set of links, to see if there are some nice simplified clips to help people like me start in on using this nice and slowly.