All this is answered in my video above and in more depth but
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1. Easy as pie. I mean like 2-3 buttons to warp to friends, add friends, search for players, join groups, and chat. Same with yelling out for things like help and so forth.
2. The issues with quest sharing are just that. You can't. So you could find yourself traveling across the map to get the quest someone has.
3. DLC does seem to be VERY in depth and there is a ton of content. The devs have been pretty open about it. Also they can add things in to the live server without the need of taking it down and that includes bosses and large Arc Falls
4. The exploration is pretty cool if you like Fallout style worlds. Lots to see but NOT as wondrous as many fantasy MMOs
5. Enemy variety isn't the games strong point right now. Enemy interaction and massive battles 100+ ARE the strong points.
6. Not much of a grind, mounts given at level 1 and with good planning you can battle with almost anyone. Short bursts WILL reward you if you burst doing arcfalls and the large randoms.
7. Story seems cool, again in an alien Fallout way but its not super strong so far
8. Stats are tied into your abilities and the weapons you get. Not the character that I can see.
9. Controller for me and I love M + KB but the controller is stupendous. M + KB works but the way the UI is set up and how fast it is you do not notice any drop off in speed or anything with the controller.
I have a personal love for the abilities and some of them are very cool. Also because of the way you use them most are passive which means you aren't forced to have a massive set of keyboard commands. I am LOVING it. It really fits into the idea of a shooter + mmo.