I'd say 'very much yes', worth getting at leas the base game (see above posts).
Some pluses and minuses:
+ Well done, large game world - huge amount of content and quests. One of the game tooltips is, 'sometimes just pick a direction and run, there are quests everywhere'. And there are, and they're not 'fetch 10 of that' type quests, though they are usually 'do stuff that will kill monsters a while with a story'.
+ Pleasant atmosphere - graphics, art, relaxing orchestral music
+ Very explorable - little things to find, including crafting materials every few steps, chests, more unusual types of chests you can't open at first, museum pieces to collect...
+ Every NPC text in the game, every quest, is voice acted (and well). It's huge.
+ It's easy to enjoy. You can do all the usual stuff to make your character stronger, but if you don't you can still do most of the game.
+ Skill system that's unique and interesting on the surface - skill lines for class, race, weapon, armor, guilds, and other things.
+ Player culture is mostly good.
+/- leveling is easy. Key points are level 50 cap, then CP160 in 'champion point' secondary leveling system. The way the game works, any drops you get match your level, and become obsolete as you level - until CP160, which is the cap and you get permanent items. Your fist character levels CP 0 to 160, but all other chars get the same CP points, so all later chars start at your top CP level at 50.
- The game is damn evil. The best with rare exception are rather self-interested leaders to help, otherwise, you are rewarded for stealing and assassinating innocents but not reward for not doing so, pet classes can only summon demons, characters can become werewolves and vampires, the new class is 'necromancer', etc. Some quests make you pick a 'good' character to be killed off (as Mass Effect did).
- Fairly limited in class selection - a handful.
- You might not like that most of the game is easy, making it more about 'enjoy the hundreds of quest stories as you play them' more than close battles.
- The inventory is designed to flood you with hundreds of small items you want, to pressure you buy the subscription. You need to give up some things, especially crafting or spend time and alts to try to not have it. Luckily, it's easy to not craft if you want and buy things from others if you even want any such items.
- The in-game selling system is laughably badly designed. It's done by dozens of 'guild sellers' located all over the game world, a handful in the largest cities, with no way in-game to search across them.
I could add more, but overall, it's a great, relaxing game. Recommended for what it is, quest/story mmo, easy to play. Not for 'action', challenging combat enthusiasts - though you can have some of that with 12 man end game 'raids', the more challenging DLC dungeons, etc.
Two beginner tips: visit stables daily to add a 'skill point' to your mounts, and always be researching 'traits' in crafting if you want to craft, ever. These are sorts of 'gates' - it takes 2 months each to level mount speed and mount storage space, and the better part of a year to research all the crafting 'traits'. They aren't critical to have, though.
One other note - the game 'boosts' your character as if it were high level as you level, so you can jump in with everyone to doing things like joining groups killing 'world bosses', and doing dungeons as of level 10. You can go all around the game world at any level and kill normal enemies. Levels just give you abilities to use, etc.