I am a big fan of 4e, both as a player and as a DM. I played a fair bit of 3e, but never DMed - I felt I just didn't have the system mastery to do it.
One thing I do agree with, though, is that it is really easy to make 4e very heavily combat focused. Coming from a having been a pretty avid table top wargammer, I find it a real struggle to not let my story sink to the background and simply get lost in the mechanics of combat - as, at its core, 4e combat is an excellent table top skirmish system.
So I do agree that, due to the strength of the combat system, it is very easy to let that part of the game overshadow the rest.
That said, I still love 4e (even when I feel I'm DMing it wrong), and have no interest in going back - haven't had this much fun gaming since I GMed 2ed Shadowrun.
Additionally, I've tried the new essentials, and I like some of the classes - the knight (which I played) and the thief (which I didn't) are both quite interesting, but I wasn't really sold by the others. That said, I would be happy to invite any of them into my own campaign - they would fit in right beside the non-essential characters, and simply offer a simpler playstyle for those who want that.