It's visually gorgeous, yet completely fails at explaining what the product does and how it's different from the two dozen competitors. Remember rule #1: Show, don't tell (hint: screencast, live-demo).
Don't promise "LET'S CUT THE VAGUERY" when all that follows is cropped screenshots and breathless marketing copy.
ALL YOUR TEAMS ARE A CLICK AWAY, TEAM STATUS & PRESENCE AT A GLANCE, MINIMALLY DISTRACTING GROUP CHAT ...
I can't help but respond: O RLY?
Skype has all that. Minus the breathless marketing copy...