It's usually a 50/50 with me.
I always find something that pleases me and something that doesn't
For instance: World of Warcraft: Cataclysm
There was a lot of negativity spread about every aspect of that game. I liked parts of it, like how we had to go find the entrances to dungeons before we could actually enter them, as well as the talent system re-vamp (It wasn't the greatest, but it was nice). The story-telling was nice and had me feeling more immersed in the story behind Azeroth's imminent doom, but the end-game content was just bland and boring (In my opinion, anyway) and the fact that we could kill Deathwing with only 25 people was kind of a disappointment, being a major figurehead in WoW lore as well as the Aspect of Death and "The Destroyer" he doesn't really seem like something that could be taken down by merely 25 players. 40 would have been a more reasonable number, like back in Vanilla WoW.
That's just my input though.
WoW was the best example I could think of in such short notice.