Nothing is perfect. I'm sure some people have had problems with Futaba's system but I have never seen it first hand and Futaba owners I have talked to say they've had great luck. After witnessing a few Spektrum issues and having a couple brand new Spektrum receivers bad out of the box myself, I made the switch. Like Minnflyer said, the binding is much simpler and receiver mounting is nicer. I think the menus and programming or more intuitive as well, at least in the 8FG. With my luck of course, the Futaba will crap out tomorrow but that's how it goes. You are putting your trust into a piece of equipment.
I did see this online the other day, thought it was funny:
http://www.facebook.com/video/video.php?v=1260333904055