Everybody is happy with their arranger UNTIL something goes wrong. We've had people on this thread that have had no problems with their Audya, and they are perfectly fine with Ketron support.
Then we've had people that HAVE had issues, and they almost to a man are NOT happy with Ketron's sparse dealer network and lackadaisical support.
Draw your own conclusions. I know I have.
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An arranger is just a tool. What matters is what you build with it..!