This is a love-hate relationship with the game, but I generally think its pretty good so far.

Pros:
Nolstagic Ragnarok Feeling
Everything can be obtained by ingame currency.
Tons of ways you can play your classes.
Huge achievement content awesome for perfectionista like me, and yet still gain decent exp doing them.

Cons:
Difficult for a beginning free player , as trade have to be used by a token. Fear not, they can be bought with silver.