Yes, but I've heard good things from those that actually use them. Preforce mated to GFS, lightning quick check outs and builds that work lazily, you can make a change to the code base even if you don't own it, and code review requests will be sent out automatically as well as tests run to ensure you didn't break...Google.
The tools are world-class. But as soon as you use them, it is also obvious how far away they are from perfection. So I think you'll always here about how great they are from the outside, and grumbling from all the people who use them on the inside.
They are really great, and they really do make a difference though.
