As someone who's never played it, I think it's accessible. I treat it like any other MMO new to me. Then again, I've played other MMOs before. And many of those games have some similar characteristics.

I think it depends if the lore and game mechanics intrigue you. Personally, I'm most intrigued by the lore and classes. And if I have friends IRL playing with me. If enough friends persuade me (and persuade me well) to join them, then I'm more likely to play. These games, IMO, are most fun if you have friends to quest/raid/instance with.