Which is worse?
Finding a book you love and then hating everything else you try by that author, or
Reading a completely disappointing book by an author that you love?
I don’t often meet a book I loathe, so I’m not sure how to answer this question. On the one hand, if a favourite author produces a bad book you can write it off as an accident and continue enjoying everything else they’ve written, while you could waste a lot of time reading and hoping for another book as good as that one brilliant one. But on the other ... The more good books you read by an author, and the more firmly established they are as a favourite, the higher your expectations and the greater the disappointment.
According to my reading records, most of the books with which I’ve been seriously less than impressed have been the first I’ve read by that author (and have put me off reading any others). But when I have read a dud by an author I like, I haven’t minded too much because I can still enjoy their other works and, well, anyone can have a bad day. But to love one great book and never have anything else come close ... it would make that one book more precious, but I doubt that would be much of a consolation. (Which is why I am desperately hoping that The Angel’s Game is as wonderful as I want it to be.)