I have a yamaha e463, korg pa600 and recently bought a roland bk3 from ebay. Im not going to get in
a “my arranger is better” discussion. For me,my music and my live performance, the korg is setup for my live performance with special styles I made and edited factory styles. I added the yamaha for the yamaha
specific styles that I couldn’t duplicate on the korg. Together they work well.
So I ran across the bk3 at a great price, I started to play around with it and set it up with my song list and edited styles to fit my songs. I find myself playing the roland more due to a better mix in the styles that fit my songs . The fills are smoother and I seem to navigate faster on the fly compared to the korg and yamaha. The korg is great as far as making it your own style and sound but the time I spend doing that takes away from learning new material. So I use the roland for 90 percent of my styles and the korg for lead instruments and the yamaha is in the corner not being used at all. Each to their own I guess. I was surprised on how my rig ended up like this.