“Arrived next day from PiHut - appreciate the super-quick delivery!
It fits the Pi well, screws in accurately and securely and looks cool (people said the black version which I got makes for a Vader look - I agree).
Ran the Pi with heavy load for several hours and temp hovered under 55 degrees which means no throttling of CPU speed. I am sure the version with active cooling (two fans) will be even better, but I love the silent operation and prefer to go fanless unless I must.
Being a big heatsink (both top and bottom) it does get hot, but in my experience just warm to the touch, not hot enough to keep a tea mug steaming (which is not a good idea for other reasons...).
You can find cases which offer more protection for the Pi, but I really like this one.”
“Keeps my Pi4 at 60C under full load for over an hour. Doesn't block WiFi or any of the ports. Looks pretty stylish too. And, as a bonus, gives a nice warm surface area to warm your hands when it's idling along at 40C! Would buy again.”
“Easy to fit, and good looking, it also offers excellent protection to the Pi. Rowards the end of installing Rasbian from Noobs, I measured the temperature, and found all points of the heat sink to be between 40 and 41 degrees C. So,it works well, too.”
“Looks good and does the job, so far has only ever got warm to the touch, comes with everything needed to install... have already recommended to a friend”