This is a slow subforum, there's no need to bump 3 times in one day.
The final effect always depends on what your after. It looks to be by far the most detailed and over the top tutorial I have seen so far. I've done some skin retouching before but I have never added shadows or highlights to the subject. I always thought that's what makeup artists do.
Also this is not the only way to do it. Just one of the ways. Remember that, there is no "tip pro's use" there's just "one of the methods that pros can use".
But the most important thing is still just try it. If it gives you the right effect remember it. If you don't like it find something else.