Absolutely loving it!! Put like 6hrs in first day I bought it. I'm not even sure where to start, but well, the loot is awesome for one thing. Lots of variety and I definately have never felt overpowered. I love that there are named Armor/Weapon sets, and especially like that the bonuses for owning more then one piece are a mystery until you collect and put them on.
I really enjoy the combat. Playing a ranger-type toon, but having the 3 weapon combo slots you can rotate thru at any time makes for a lot of fun, because you can switch to melee weaps in a heartbeat. Its nice that the monsters you fight against use the same abilities/spells as a player character. It offers a real challenge, and I can't really take any encounter for granted. Also the spell effects are really good. With fireballs and other things flying an encounter looks as good as it plays.
Enjoying the story and the cutscenes. Also loving the Mindreading, which adds a cool depth to gameplay. The world is really well fleshed out with NPCs. Loved the guy doing magic tricks in the pub in the starter village.
The quests are actually really cool and varied, and you see a change in both NPCs reaction to you and physically in the game world in certain cases. Like when I kicked ruffians out of the pub, the next time I visited it was full of locals and even some guys who i rescued from robbers earlier. They all have passing comments for you when you do something for them, like in LOTRO.
Theres tons of stuff to like here, and I highly recommend it to anyone who likes actiony combat, Diablo like loot system, and a story that guides the game along but doesnt get in the way of the fun. I am 16hrs in, level 17, and already looking forward to my next platthru.