I tried the Genos twice last week, when I bought my PA4X. The drums sound a lot better and there is more overall clarity to the sound. However, the Korg still sounds more convincing overall, more 'present'. The Genos isn't helped by Yamaha's usual habit of smothering everything in a jumbo helping of reverb.

I also found the Kino Strings voices a big disappointment. They sound quite artificial and have a surprising lack of nuance by Yamaha's standards.