1 - 2 Stunden
My kids PS3 went out with the YLOD. I was already to spend 300+ on a PS3 and my son found this kit.
A little internet research and it seemed worth a try. Great tutorial pages on the ifixit.com site and away we went. The time was well spent as now the PS3 works like a charm and we still have backwards compatibility.
$40 plus tax versus $300 plus tax. That is the definition of a no-brainer. And a good activity to do with your kids.