I used to play.. got to max level on a few jobs. I quit in the end after being pretty much addicted to the game for 2 years because of the drama in high lvl linkshells (clans / groups).
Great game, a lot more social than WoW, if you want to get past lvl 10, you WILL have to group with ppl.
If you get into it and want to get some of the better items, be prepared to give up your social life tho.