now is a great time to join. they are adding 6 new subclasses - warrior, monk, dragoon, white mage, black mage, bard. The combat and crafting systems are improved a lot. The major con at the moment is that there is not a huge player base, and there is a little lag because the servers are run in Japan. They will fix the server lag when 2.0 is released, and the player base will grow over time. Feel free to join me and the linkshell im a part of :
Paradox - Cornelia (will be Durandral once the server merges occur). the player base will also "grow" on each server because of the server merges, and also they are adding new end game content with 1.21

few simple pros and cons:
Pros : graphics, mature players, fun boss fights
Cons: lag, small player base, lack of end game content