Why would you go from a supersonic plane to the wright brothers?
LOL! anyhow although I have a PA4x I also have the the Medeli, it is a very powerful arranger for the money, but it needs work and knowhow which is a slight difficult learning curve for me, as far as the video done on the comparison Medeli vs Ketron he is not trying to promote the Medeli, because he makes the best worldwide sample for all the arrangers except the Ketron because Ketron was always a closed system to make your own.