So, apparently the Kawai ES520 is the hot new digital piano that's supposed to rock our worlds. Has anyone actually taken it for a spin, or is it just another glorified glorified toy keyboard that pretends to be a serious instrument? I'm curious if its weighted keys and sound do justice to the "piano experience" or if it feels like someone slapped a grand piano's aesthetics onto a bargain bin rhythm machine. Enlighten me with your brutally honest opinions before I invest my hard-earned cash in what might be the best or worst decision since my first ukulele purchase.