Bob the Kurz is a better 4 zone controller, but if you need it to controll the Roland VK module and use the 2020 for pianos..I would just go for the VR-760..The Kurz is a simulated piano feel..do you like playing organ on a piano?..The VR760 ia an excellent organ playing keypad, it also has a quick response parameter for playing organ at super fast speed and licks..The pianos ,both acoustic and Electric[especially Electric] are very good..Scat sounds are a must for me,not on thee 2020[need vocal card]. For all around players dream , the VR shines[also 36 lbs], much lighter than the Kurz and the modules..Much quicker set ups...you are ready to go in seconds..

You can't go wrong with the Kurz /Roland combination..but I think the VR760 will serve you better in the Piano/organ world..