I love my XDs. The checking is a non-issue. It looks aggressive, but you don't notice when you're shooting it. I LOVE the sites on the XDs. They are AWESOME! I've never used the fiber optice (can't remember if that's the correct term for them or not) sites before, and I'm LOVING them on the XDs!
The only thing I didn't like with the XDs is it seams kind of finicky about racking the first round. If you have the slide locked open and drop it on a fresh mag you're g2g. But, if I rack the slide to load the first round I have to make a concious effort to pause with the slide in the rear most position, then let it snap closed. Otherwise, if I just rack it quickly and let my hand slip off the back of the slide, I tend to get the first round jammed at an angle half in the barrel, and have to drop the mag, and lock the slide open in order to clear the jam and start over. I do think this is somehow more my error than the guns. It's just never been an issue I've experienced on any other gun before.
Don't get me wrong though, it's an awesome gun. I normally carry an 6+1 LCP .380, so for just a little bit more gun to tote I can carry 5+1 of .45 ACP! Oh Yeah!
BTW, Hickok45 and Firearms Patriot both have great reviews on youtube!