Then, a year or two later, you pick it up and WOW WHAT A GREAT BOOK?
That happened with me with The Hobbit. ...

Everyone was The Hobbit this and The Hobbit that and I tried it; actually read it (don't remember if I made it all the way through ...) and it wasn't very interesting!
Then I picked it up a year or so later and -- WOW WHAT A GREAT BOOK. Read it. Devoured it! Then started Lord of the Rings books. Oh my.
Just total oh my. And I laugh that I hadn't even liked The Hobbit the first time around. I'm SO glad that I gave it another go.
****
What books or series, have you encountered, where you tried it and it just didn't work. Then, a week, a month, a year later you picked it up and were captivated?