FFXV is a great example. I was never hyped for it at all, not even when it was FFvsXIII. "It's like Kingdom Hearts without the Disney stuff!" just wasn't an enticing elevator pitch to me. But I was still an FF fanboy for better or worse, so I knew I'd play it whenever it finally made its way through development hell. It came out, I started playing it with very little joy in my heart, but when it was over I thought, "Y'know, that was actually not too bad!"
I guess I'll say every Assassin's Creed from Unity onwards. I always have a great time with them, but everyone says they're actually generic godawful pieces of shit, so...