I'm one more of those that jumped from Ketron (X4, in my case) to the Tyros. It's true I miss a couple of styles (mostly latin ones), like 'Bachata' for example (great for Juan Luis Guerra songs). But overall the Tyros is a more complete, easier to use and more reliable instrument. But I must stress that the portuguese Ketron distributor never abandoned me. On the contrary they always offered me great assistance.

-- José.