At least the Fifth Element dude has the cajones to say he hasn't played 4e, the rest of the replies sound like they haven't really played the game.
While there are some things missing, most of that will be covered by time. Rules wise, the foundation has been laid.
I find many of these posts incredibly frustrating, not from a 4e fanboy POV, but from a common sense POV.
If you don't want a dragon to be tripped, role-play it. If you think the rulebooks need more common sense... you're the DM! Your job is to be the common sense. If you thought the 3e core books had varied attack patterns and combat options and quick combats (early, yes they were fast; mid and late, no)... I think you're memory has tricked you. I hear a lot of griping and not a lot of... I hear a lot of fluff, and not a lot of crunch.
I'll grant the PHB might be lacking options, but the Class section is a huge chunk of the book, and the design space is obviously wiiiide open. We'll have an Illusionist style spellcaster soon enough, and a Summoner too, heck, maybe even a Necromancer.
Some complained about the lack of fluff, then others complained the fluff in the Barbarian class ruined it. LOL.
I think the only thing 4e is missing is a forum for the 12-22 yr olds that are having a blast with this game.