All launches will have some hiccups along the way its just the way it is with these sorts of games, and no matter how good SE do they will not be able to please everyone especially as i believe this game will be very popular to begin with. This is because at launch not only do they have new players joining they potentially have all previous FF14 1.0 owners as well.
Im hoping the quality of game and content will continue for years to come as from what i have seen of the game so far, it is very well designed and highly enjoyable (again that is my opinion).