The full cover waterblock listed is the one originally for the 460 sonic.
I am unsure of the compatibility, there are a few changes in the location of capacitors. I highlighted the caps I noticed first, but later realised the ones closer to the core are more spread out on the 560. The final thing is that they only marked it as visual, meaning they only look at it, rather than test it.
As for if it is good, well it performs just as well as any other 560 I would assume. If you can, I would get a different brand, one that is known for reference designs.