The conclusion: the games may yield improvements in the narrow task being trained, but this does not transfer to broader skills like the ability to read or do arithmetic, or to other measures of intelligence. Playing the games makes you better at the games, in other words, but not at anything anyone might care about in real life.
Life skills originate from education and dealing with all types of people. Video games are virtual experiences; the skills apply only on screen.
Get out and do something real.