Is it worth getting? I'm considering it.
I'm enjoying it a lot. The crafting is surprisingly addictive. I'm mostly enjoying exploring.
I chose a thief first off, and later discovered this is considered one of the harder classes. You get good peak damage for a short period, so if your target is not too tough you win quickly, but then you run out of steam, and you're somewhat fragile.
Rangers seem to be much easier.
I started thinking I'd only play three characters, and there's already 6 on my wish list (and I only have 5 slots)
Upsides:
I like that cooperation is encouraged in a number of ways. I like that if I get stomped by a centaur and there's someone else around, they'll probably try to revive me.
I like exploring, and seeing the different places (you get experience for visiting new places).
I like the fact that a lot of it seems designed so that there are few bad choices early on that you can't retract later if you change your mind.
Downsides:
Bits of the game still aren't working (the Auction house has been down every time I've checked)
I miss being able to talk about the game mechanics IC
I'm not entirely sold on the idea that all your characters sharing the same bank and guild
I think it's worth it, but it's only really my second MMO