Depends really on the style of gaming you like. Theres alot of grinding involved of course. I played the game quite a while ago and quit as it didnt suit to my taste - that and i became the highest level sorcerer in all the servers... which became the end game for me.
The fun parts i found were the Bosses, some of the dungeons too. But after you play the game for a while things do get quite tedius and repetitive and the LC world seems a much smaller place than when you first started out.
But ultimately - completely down to what gaming style you prefer.