If you are looking for traditional content, log in do your raid(s) and/or log in do a couple dungeon runs, then I would pass.
If you can find yourself having fun doing more of the non-traditional stuff, more sandboxy content(exploration, crafting, housing, fishing/hunting, horse taming/races etc) along with guild based PVP then I would definitely look into it.
Just be ready for almost endless progression(either through levels or upgrading gear or just farming money), via grinding mostly. Oh and be prepared for things like no fast travel, money/weight penalties, no linked banks , fixed AH prices etc, as its pretty different from the norm.
Thankfully its B2P, so no worries about not having VIP or other nonsense(hopefully) so you can just do the cheap package($30 for this game is a steal) and be able to pop in and play whenever you want.