The WK7600 has a very good keyboard but not the easiest to use! The Piano, electric pianos and organs are very good and the rest of the sounds are just ok. The styles are good but I'm not a fan of the drums. The Cymbal sounds need to be updated. Not as good as Yamaha's. The Yamaha YPG 235 is another very good choice for 76 key arranger. Here in the USA the keyboard sells for around $200 -$249. The Piano is good but all the sounds are good! The drums are much better and the cymbals sound like good cymbals not at all like the Casio.
There is a lot more you can do and program with the Casio but for a beginner these features are not easy to do. I have sold both products and find that the musician wanting to record and edit midi tracks and be able to record audio as well, and want a drawbar organ with leslie simulation would go for the Casio and the amateur would prefer the Yamaha.