Forenote: I am going to be as polite and respectful here as humanly possible. The devs work hard to serve the player base. However, as an American, I have the right and the freedom to voice my own opinion. If you disagree with this, then you don't belong in America, but instead a nationalist country with restricted freedom of speech.
Simply put, nothing works. Nothing. The Anniversary xp boost? It was delayed 2 hours, poorly administered (severe, incredible lag, all players forced into the same zone at the same time), and didn't even stack with crown scrolls as promised. So those of us that purchased scrolls hoping to use them for the event were in short scammed out of our money.
Dungeon finder... Dear god, give me patience... It quotes you anywhere from 1-28 minutes, but you consistently have to wait over an hour for a que, especially for vet dungeons. Oh, and they have a severe bug right now where if you lose a player, it takes over 50 minutes to replace them. Nothing I love more than waiting around for an entire hour watching my horse's tail swing left and right...
This game has been 100% hype and 0% delivery since release, plain and simple. It took over a year (or two) just to scrap the flawed VR ranks, and that still hasn't happened. Here we are, 2016, still waiting, still looking up at the sky hoping for the rain they said would come a long time ago. for these reasons, I have come to despise ESO. It just isn't enjoyable. It's a battle of listening to their promises, then realizing that none of them are ever delivered.