Is the world map BIG?
And are there many things to do?
Is the game good guided?
i hate games where you just start, and dont know what to do or where to go..

1.
Yes the map is huge. lots of dungeons , etc
2.
There are lots and I MEAN LOTS of quests to do, u can refine ur equips , learn skills/job skills i will explain later.
3.
yes i belive there r guilds there r factions also.evil/good.

job skills.. each class comes with skills and job skills each class will receive 5 job skills and will effect ur character a bit... increasing atk spd..increase atk etc!

hope this helped