“This does exactly what it says - CPU and GPU temperatures drop by 10 to 15 C - easy to install no more throttling due to temperature. Highly recommended”
“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.”