My wife was friends with his ex, Barbara (my wife’s kids went to school with her’s). She once gave me some cd’s with some of that old stuff on it. Even though I loved the Beach Boys as a kid I didn’t really like the stuff she had of his... was kind of monotonous I thought.
OK I can relate - I had that same feeling on hearing it for the first couple of times. And one has to like the voice. If that doesn’t work, it doesn’t quite gel, in other words.