I dont own an Audya 5, but an audya 4. Thats the module version of the Audya 5.

Why ? ..... Because i personally think it has the best arranger styles available, and those that suite my need.

Long long time, i have tought that one day there would be an arranger synth that would have the best off all worlds. Now i realise how foolish this was. So far i have found that every instrument has its own strenghs, and being a homestudio player the total weight of my setup is of no concern at all. Thats why i have settled for a broad range of instruments.

Korg KronosX 88, great keyfeel, awesome strings, synths and pianos
Roland Vsynth GT2, most versatile hardware Synth.
Yamaha Motif ES rack, vith VL and DX expansion boards (barely used nowerdays)
Roland Integra 7 for their supernatural sounds
PC with 24" touchscreen for running ableton cubase and a wide range of Vst
Ipad.

Anyway, from my Audya in general i only use the styles.. They are on par with the other instruments, but the Audya solo voices dont add much to my total repertoire.