So I resubbed to FFXIV this weekend, post patch 2.1, and I have to say the game is MUCH better now.
I quit in 2.0 because fate grinding just wasn't fun. It was just incredibly boring. Even though it gave the best exp/hour, by far, it was SO MUCH MORE BORING than anything else. So in the end, you were choosing between more-entertaining content, that was stupidly slow to level in, or really boring content that was fast but made you want to rip your eyes out.
In 2.1, they've buffed dungeon exp by quite a lot. Unless you loathe PUGs, you probably want to be in a dungeon or a queue at all times while leveling, if you have the time. They also buffed leves (at like 47 I was getting 9k exp, then up to 12-13k with the bonus exp).
Fate Grind groups are still a thing, and it's not mandatory anymore, and that's nice. It might technically still be the best option for exp, at least at certain levels, but I honestly think most people doing them do it because they don't like PUGs. Of course, if you're leveling a DPS class, you have longer queues, and might not have leve allowances. So that's a factor.
Also worth noting, they shuffled some of the cross-class abilities. My Cnj, for instance, can no longer use Thunder, but I get Blizzard 2 (an AOE), which is SUPER nice for fate grinding.
I haven't done much of the endgame content beyond the main scenario quests. But so far I'm happy with the changes I see. They added daily quests in the 40s, and I'm hoping they'll add dailies down through the low levels, for the sake of leveling. Don't know how long I'll stick around, but I'm far more willing to level more classes up now.
Anyways, you all are horrible, @#%^ed up people
Never underestimate the healing power of a massive dong.