I am a pro keyboardist and guitarist and have had many expensive keyboard models. I bought this casio 'arranger keyboard' as a backup to my more expensive keyboard. I hate computers and prefer real instruments, which the casio clearly is. It exceeded all my expectations. First of all, I was surprised at the fact that the keys themselves are of very high quality, and feel strikingly similar to my old Korg Triton, which was a keyboard costing almost 10 times as much, even over 10 years ago.
You cannot get a better keyboard for less than £ 240. This is because it's the only keyboard to have professional features such as editable sequencer, editable tones, drawbars, and the excellent semi-weighted keys.
The piano sound is excellent, as are the electric piano sounds.
I was also surprised to see that it has an editable chord track. This keyboard has a BETTER sequencer than the one you'll find on the flagship Yamaha arrangers, costing at least 4 times more. The casio even has an arpeggiator, something you don't find at all on an arranger keyboard, you'll only find them on synth keyboards. A new model is out, but really it's just very marginally better. Get this model at the lowered price as it has dropped from £ 300
All in all, a clear winner.