I found the same thing on first listen, because a few things were subtly "wrong" (different). On second or third listen I love the new version, the production and vocals are just that little bit more polished in a fair few ways and I've gotten used to the slightly different mix. The new bonus tracks are pretty decent and it's nice to rediscover one of my favourite albums again.
It wasn't at all dissimilar to the effect I get when trying new headphones - I hate them for a little while, invariably. Then I get used to the new tonal balance and I learn to love the sound (if they're good headphones)