1) Is there and when is the matenence day and how long does it normally take? You can buy Aion gold from our site when you need.

A: It is Every Thursday Morning at 3:30 AM PST, game will be in the matenence and it's usually last 3 hours.

2) Are there instances and raids like in wow? or is end game content just PvP?

A: The engame content focuses on the PvPvE. You will be running PvE instances, while competing against another team from the opposite faction. You may win by completing objectives in the instance, or by PvPing the enemies. As of now there are only 2 such endgame instances, but it is a relatively new game, and there's always time, and room, for improvement.

3) Is there a website that gives you the population and balance of servers?

A: NCsoft doesn't publish the exact numbers. They closely monitor balance to ensure there's never more than a 3% discrepency, however you have to keep in mind that some players may be inactive, banned, or fiercely casual, and still count on those numbers.

 
4) Is it safe to assume that if there are instances and raids that healers are always needed or is there a different class that is needed more in Aion?

A: Templars and clerics always seem to be high demand, low supply. Also, sorcs are needed in every group for crowd control. One of those three classes is sure to find groups easily, likely cleric being the most desired (it's a healer so not alot of people are playing them).By the way buy aion powerleveling service from our site will make the game more interesting.