Above I selected both realistic sound and unrealistic sound. Unrealistic only applies to the rhythms. For a keyboard at this price they are a disappointment. However the rest of the instrument, voice sounds, action, customization, and overall quality are worth every penny. I just sold a Yamaha DGX660 and I loved it for what it was, a "do everything' instrument." My biggest positive impression here is kind of the opposite, how thoroughly thought out the features it does have were. This keyboard is not trying to be "everything" it just trying to be really good at what it is. AND IT ABSOLUTELY SUCCEEDS AT THAT. Sound, action, and keyboard quality are excellent. Built quality is excellent. Everything about the keyboard says just quality. It's up there in the price, but in my opinion nothing from any of the other major manufacturers comes close to this for the same money. (and I did research on everything close to this price range) The speakers alone are good quality but personally I wish they had a little more volume. Just my opinion. (and yes, my hearing is fine.) Hook up a good pair of studio monitors and listen to what you hear; you won't be disappointed.
Wayne, New Jersey