Yeah I had the same problem got sick of playing the game, hated partying and waiting around forever. So am playing EQ2 and love it, it's heaps better than FFXI. Can create a character and is much deeper and is creation unlike FFXI which dare to call it create, more like choose a head.
Iam enjoying the game and pretty much any class can solo, but some better than others, just choose what ever class appeals to you most.
Haven't been playing long, but this game isn't FFXI and I don't think theres endgame?? As they always seem to release new expansions and content.