I don't perform live, so I can't speak to the ease of use of the module for that purpose. I use arrangers as songwriting tools to generate ideas and I find the BK7M ideal for this purpose. You can have an endless array of styles at your disposal on the USB stick and the synth's sounds are excellent. I can couple this module with a workstation synth like my Korg M3 and have the best of both worlds without two full keyboard sitting in front of me. Or I can couple it with my Tyros 2 or Pa2xpro and have two completely different sounding arrangers running simultaneously, again without two keyboards sitting in front of me. I haven't tried it yet, but I also envision using this with my Band in a Box software, which will output the chords to the BK7M and allow the BK7M to play its styles in sync with what Band in a Box is generating. I think the BK7M is a great tool and something I've been wishing for for years.