Hi Guys, I've listened to the demos of these sounds, and I must say that there's nothing surprising in them. the sounds of Harmonica and Violin, sound more real in my S775, respect to the Drum Kit seems good, but not enough to faithfully emulate the Revo Drum of the GENOS. the Piano DX, nothing transcendental. In fact I think that my S775, has excellent Drum Kits, without being a GENOS. on the other hand the GENOS, is the flagship of the keyboards of arrangements, which has the best and most updated sounds and without offending, I do not believe that these sounds are originally from GENOS. the demonstrations of the GENOS, are really spectacular. personally I would NOT buy this package. I am sorry if I offend with my comment, but it is my personal opinion. Greetings. Hans