yes the hackers are very fast. They are supposed to be comming out with a new controller very soon for cars. I had their old controller and I ran a lehner motor with it.
In terms of price, the novak is quite cheap compared to what it replaces (ESC, Motor, Comm lathe, new brushes......) I would expect the new Hacker controller to be around $200 to $240 and I think the motors are like $170. It is performance that just can't be beat by the novak system or most brushed systems. As far as I know you can buy the Hacker stuff directly from them.
Brushes? We don't need no stinking brushes!!!