The interface is super well done.  Made enjoying the game easy.  It was for me a real surprise how well it was done.  It did not recieve all the hype many games get yet it is as good as any other I played (i.e. Diablo, ...) and unique in many ways.  As in all RPGs there is a spot or two where the play gets a bit teadious but this game had much less of this than others.  Each of the three character types requires a truely different style of play.  One aggressive (hack and slash with weapons and armor emphasis), one moderate (magic bent with spells and charms emphasis), and one defensive (summoner idiom with "let your friends do the killing while you try and stay out of the way" emphasis).  Each requires different actions and thinking strategy, and each is just as fun as the others, just different; which means there is good replayability even if you don't go online for a fight.  This game is growing harder to get these days so if you have an interest act now.