Moin, has anyone experience with it? As far as I understand, these pads bring something through the "holes" in the laptop floor. As is well known, this is not the case with MacBooks.
I have several of them and haven't made a noticeable difference to any of my laptops, whether it's a Macbook or not.
I would not buy one again.
Install your Mac better "smc Fan Control". You can download and use it for free.
Use "iStat pro" as a widget so that you are well informed about where the heat is on your Mac.
With smc FanControl you can control the fans so that your Mac always stays cool.
Otherwise, place your MacBook where it can easily suck in the cooling air. All tips that bring a lot but cost nothing!