Is the Grob/Basman a con artist's bogus-operandi, or is the line actually sound? The truthful answer is that the opening is a bit of both! And we can call 1 g4 a "good opening," the same way a mob member calls a hitman colleague "a stand-up guy." The engine already prefers Black's chances after 1.g4, so nobody can honestly claim it is White's optimal first move from an empirical standpoint. But is it refuted? The answer is "no," and what we nearly always get is a disorienting mess by the early middlegame.
In this volume, experienced authors Lakdawala & Hansen take the Basmanic plunge and examine some of International Master Michael Basman's most remarkable victories with 1.g4 or 1...g5, along with some of his less successful tries, as well as some games by other occasional adherents, like Grandmaster Hikaru Nakamura.
This should not become a cornerstone of your repertoire, but you are guaranteed a bunch of fun and entertaining games.