This work actually made Baudrillard accessible to me, so I think it's probably a pretty good book (although I have nothing to compare it to, so I'm not 100% sure nothing in it is wrong!). I was completely unable to get into him before, so this is definitely a book that achieves its goal of introducing him to people unfamiliar with him.
I'm not exactly sure how I feel about Baudrillard himself. On one hand I do love the postmodern update to the Frankfurt School thinkers (he seems to be heavily informed by Marcuse in particular); on the other I fundamentally disagree with his ontology of a lost Real and an unsure where to situate the idea of hyperreality if not on a line on progress (or rather anti-progress). it still seems beholden to that which it seeks to critique.
At the end of the day Baudrillard may be more useful as a thinker who generates tools we can use, pick and choose the parts of his theory that are most radical and leave the rest behind. In that case, a general introduction like this is probably the best.