I got my Cirrus7 Nimbini v2 fanless with i7 and it is awesome!
It looks extremly well, is Lightning-fast, fanless and rock stable on heavy load.
The aluminium outside has about 30 degrees on idle or playing music with no or light conversion. On heavy load like first scan of music library and analyzing the music files it‘s getting really hot on the outside (around 40 degrees), but that‘s a good thing, because the heat is transported away from CPU.
I tested the original Intel NUC i5 too. In comparison the i7 is much faster and give a much better user experience using Roon. And I imagine the sound is better, probably because of the fanless case?