It totally depends where you use it for, in other words what kind of music jobs are you taking!
A good friend of mine uses one.
He is mainly performing in Holliday envirements with tourists. (Hotels/Cruise ships etc...)

Overall the sounds are good.
It has an excellent midi file performance.
And for karaoke evenings it's the Top Keyboard!
Allthough other Keyboards have the video out as add on possibillity, they don't come even close to the WK 8 with this.

Fred