I'm not at the halfway point yet but I think so if you're interested in the minute details. The book starts of by saying it is not a racist treatise and so far has stuck to that. It is over 2 decades old so I'm sure some of the conclusions accepted at the time may have changed drastically since. I've heard of some criticisms of it but nothing really damning from what I can tell.

Either way, I think it's worth the read if you are interested in pop anthropology/archeology in a fairly accessible book. Even if the overall explanation may seem reductive or misguided to some.