Wrath of the Lich King has been great so far. Blues and purples have been easy to come by, with raids and heroic instances -- criticized by some as being too easy -- working as intended. With barely a few weeks after the game's release, many players are decked out in epics. WoW Insider's Guild Master just got the Superior Achievement a couple of days ago, with many of their members soon to follow suit.
Of course, this comes after repeated Heroic runs, the clearing of Naxxramas, and the extremely easy reputation grind thanks to the new tabard system. Overall, it's a phenomenal gearing system... for PvE. On the other hand, the delayed release of Honor-bought PvP items and mid-December start of Arena Season 5 leaves PvP enthusiasts like WoW Insider out in the cold.