What are the features of this sound module? Is this a sampled playback machine or FM? What music applications does this fit for? Rock,Jazz, Dance or noise. Anybody who use this machine let me know your impression. a friend of mine is selling this to me for $100. He don't know anything about keyboard stuff. Is 100 bucks a fair price?

I've been using the Roland U220 sound module for many years. The sounds are very good especially the piano. They are all editable. I also have three PCMCIA cards. The sounds are digital playback. There is much under the hood of ths unit and it is the same as the U220 keyboard. Great price! Go for it!