I didn't hate the second half
I don't know how people can claim to love this, but hate the second half. I was rooting for Light in the storyline, at times I thought L was right, but I really wanted Light to win, so while LS death was shocking, it wasn't the end of the series. And the new characters weren't that different from Light, and still pretty good characters, they weren't completely awful.
I loved this series from start to finish, and when I watched this last year, I wasn't an anime fan, I've never seen one before.