It is indeed quite a good keyboard. I don't personally own one, but one of my best friends does and i have access to it any time I want it. My only gripe with it is that the polyphony does tend to crap out quite easily on the layered patches. There is this really nice patch with a piano, an E-piano, and a string layer and you do get a lot of dropped notes. I don't know if you would run into similar issues when using the sequencer, though I suspect you might. I've only used it as a live keyboard or as a single or split instrument in studio use; haven't used the sequencer.