I'm also same like you, just hit lvl50 few days a go, I've been playing this game almost 2 month already.
I can't say much you need to try by yourself If you're focusing only for 1 class i think you still have time before next expansion, still got few month for you to prepare.

You can compare WoW with Rift but you can't compare this game with WoW because from my point of view its totally different. If you're FF lover, for sure you love this game.