For the price this is an excellent keyboard. It's an arranger board along the lines of the Yamaha PSR series and Korg i series. It's definately better than anything in its price range. Over the years I have owned many different Keyboards ( ie Korg, Roland, Alesis, Ensoniq ect.) and for the price this is as good as it gets. I am not stating this is the best keyboard out there, just that for the $ you can't do better. You can access all the Yamaha PSR styles and use the XG sounds on midi files as well. This is not a pro keyboard although I might use it for that just for some of the sounds. It also doesn't have a true sequencer but it does have many sequencing abilities. The sounds come out of speakers in the keyboard but you can hook up to external amps. I would recommend this keyboard to anyone looking for a great board without a hefty price.
Comments About the Sounds:
Sounds are very expressive. All accoustic sounds are very, very good. With over 600 sounds you won't get bored.
(Thanks to Chris for this info.)
and vranik SK for the pic