Ki Ryn said:
I honestly believe that the warforged mechanics were designed to hit that demographic of player who does nothing but fight; the one who is silent at the table unless initiative has been rolled; the one who wants to be on every watch, uses Charisma as a dump stat, and tries to be armed, fully armored, and on guard literally every second. I'm not saying that is necessarily a bad thing (I play that way often enough myself). But I've never seen the style so specifically pandered too before this.
I'm playing a 'forged in pbp, "Anvuss" in my sig. This is so far off from an accurate description of my warforged PC that it's silly. Warforged can be played in a variety of ways, just like any race. While the Charisma penalty certainly discourages this choice of race if Charisma is your main goal in life, my character's Charisma is nevertheless surpassed only by his intelligence and constitution. He is active both in and out of combat, and is far too absent minded and contemplative to be much help on watch.
As others have stated, losing a feat at first level is painfull.
Losing the ability to wear armor or robes is pretty limiting too, and it hasn't been my experience that warforged specific items are either common nor particularly exceptional... furthermore, the variety of items in D&D is so great that any character should be able to find plenty of stuff to spend their loot on. Further, I'm looking forward to getting the magic item compendium, and without having seen it I'd still be willing to bet that there will be a lot more items unusable by warforged in it than items usable only by warforged.
Half benefit from healing spells is a significant blow in most parties, and I'd really like to be able to take advantage of nice low level spells like enlarge person or alter self... I'm not aware of any construct form worth altering into, are you?
Anyone who's ever had a PC remove their armor in order to more easilly climb or swim might find the inability to do so an unexpected downside to being warforged. And what other PC race needs to spend skill points in order to take advantage of the equivalent of natural healing?
Warforged are cool, and there are plenty of circumstances in which they provide a benefit, but they aren't as uber as you are making them out to be. Doing a quick census, since the warforged have been available new warforged PCs in my face to face group have remained a very unpopular choice. Humans (massively the most popular), shifters, elan, halfling and xeph are all getting substantial time at the table. The only warforged PC to make a showing was abandoned by its player after 3 sessions as ineffective.
In my opinion, the best sign an option is broken is when everyone wants to use it. I've seen no sign that 'forged fit the bill here.