Cooling performance is very good. With values in such things you have to careful because the Temp depends on so many things that one could compare different pastes with the exact same conditions. Even then you can paste one good and the other bad, apply, then the values are also in the ass :)
So Conclusion: also easy to apply cooling performance definitely very good and with a bit of skill. Together with the viewing windows get the product from me all available stars and a clear recommendation on my part!