I played it for quite a while originally and I did like it. I got up to the first eight man raid in the story against that Garlean general guy or whoever he was. I just had other things going on and lost track of it after that. I'm currently trying to decide if I really want to try tanking for the first time or if I should just switch to being an Arcanist like my OG character was cuz tanking sounds stressful.
A lot of the roles have been simplified recently, including tanks.
Used to be the Marauder was a shit tank because of TP and the cone AoE enmity skill just couldn't hack it next to the Gladiator's Flash and no tank got their aggro stance until 30, which went a long way to making tanking possible. Now you get the aggro stance at 10 for every tank job, there's no damage stances and TP is gone; you can spam AE aggro skills if you feel like it and the only way to lose aggro to your deeps is to just not pay attention.
Savage raids and Extreme trials tend to have tank swaps and other mechanics targeting main tank/off tank but things get nutty for
every role there. For normal content? Just turn on your stance, smack a d00d and pop a defense cooldown if the healer is making you sweat (or if you want to ease the burden for those guys,
I guess.)
EDIT: Also the question came up earlier while playing, so quick summary of the Tanks:
Paladin is a straight tank with the most utility of the four - this is the one to play if you want to actually protect the party.
Warrior is a very selfish tank - all but two of it's non-damaging skills are self-buffs of one sort or another, the exceptions being an admittedly very good barrier buff that eats up to three of your defensive cooldowns to make it stronger, and a self-and-friendly-target buff that heals self and target for about 6/8 seconds based on the damage of each hit while the buff lasts.
Dark Knight's more like the paladin with more DPS options - it can still protect the party a bit more then WAR but it's not the focus the way it is for PLD. Also has the (arguably) best defensive cooldown in the game in The Blackest Night.
Gunbreaker's a PLD that traded in some of the utility for a second, stronger combo - it's a DPS with tank stats and more party utility then WAR.