1. Whats it like? Is it very big? Fun enough? How many quests? 2. Does it use ur Arcanum character? Thanks in advance.
Depends. You can play it in single player mode, which allows you to save, however you do have to start with a completely new character. The game would be much harder as well. Or you can export your Arcanum character to multiplayer (in the Character sheet screen, hit "x", then say "Yes"), however you won't be able to save it, and the only combat mode available is real time. It's pretty tough as well.
Basicly it has only 3 quests(pretty short) 2 main quests(kind of) and one that you get after you finnish the main quests... sounds wierd,i know... it's not as hard as everybody describe it but it aint easy. try it for yourself and you'l see..