I own a 6" x-force, and absolutely love it. I dont think you can really form a valid argument against the low brace bows w/dual cams until you practice for a week with one.
The recoil on the x bows is close to zilch, as I can shoot without a sling with hand open, and it wont jump out. Yes, the bows are very un-forgiving, but in terms of accuracy, mine will shoot one inch groups per ten yards out, and the nasty brace height keeps me in form as I know that if I'm out of form, its gonna bite me in the wrist good.

In my opinion, I can't wait untill the local shop gets one of these new ones so I can try it out (of course I wont be able to afford one having just bought my bow, which I am very happy with)!