I always think that Roland produces good products. Good product means the right product for musicians. I ordered mine without seing and trying. I played Yam several years ago. When I owned my first Juno 15 years ago, and in 2000 the XV88, i was suprised about the quality of the keyboard in term of sounds, easy button, and well built product. I don't need much to read the manual. New version of OS for G70 will be released very soon. They say this month?...