I use that case, @abcd567. They are really nice and give a lot of thermal smoothing for peaky loads. There were some early versions where the machined steps to thermally contact the chips weren’t quite the right height, but that’s probably been fixed even in the clones by now too. Fantastic case though and not much impact that I can tell on WiFi or Bluetooth.
I just finished up a design and 3D print last night to add the Argon40 fan hat to that heat sink. This print uses that case specifically. It’s the best of both worlds in my opinion.
Link to the .stl files if anyone else wants to print one: https://www.thingiverse.com/thing:4388677