I was partially sympathetic to Dave, but also wanted to slap him many times. He was a complete ass to those women. I don't feel like he had bad intentions though, I just think he was really stupid. Luckily, he was good-natured enough to make the book not only bearable, but a lot of fun.
I really loved the whole idea of the wedding band, and the band members and other characters were all colorful and quirky. One member of the band found out at the beginning of the book that his wife was leaving him and he began totally falling apart. Another, single for so long his bandmates weren't even sure which gender he preferred, had spent years working on a musical about the JFK assassination. The third was a happily married father, but also an alcoholic. Minor characters, such as a racist and paranoid talk-show host who ironically calls himself Genial Jim, inject additional notes of hilarity throughout the novel. (I know he doesn't sound funny at all, but it was a funny scene. Trust me.)
Because this was Perrotta's first novel I wasn't expecting a whole lot, but I'm really impressed. I enjoyed The Wishbones as much as any of his other books. Maybe it doesn't delve as deeply into complex issues as Little Children or The Leftovers, but this light, funny novel was just as well-executed and pleasurable.