The latin styles are very good. The other styles not so. You can't edit them in any way. The best of the GW8 in my opinion are the synth sounds and the piano's. I am saving now for a korg PA800 because of the lack of styles on the GW8. So if you want programming of styles and drums and need better sounds I advise to go for a yamaha psr s700 or korg pa500. They all have the same price tag.