Age of Conan at launch was a horrible game. Right now it's pretty good with a buttload of bug fixes and the fact that they added a lot more content, but the horror stories of AoC's gruesome launch rippled through the whole MMO community.
However, even from the start the soundtrack was fan-beeping-tastic. It really captured the feel of Hybrodia. To give an example:
Absolutely brilliant soundtrack, not just this song, but I found it being a good example.
Edit:
I just have to include this one:
I can almost smell the streets of Stygia when I listen to that, fantastic music.