Someone else remarked that the non-SST version of the transmission generally engendered fewer complaints...???
In any case, I think the non-SST version is pretty similar to the Powershift transmission in the Fiesta. In the Fiesta, though, I think it views the throttle position, and if the car is increasing in speed, with the throttle closed -- and then it downshifts on its own. It may, in fact, look at the angle the car is at... i.e. down a hill, versus not. I don't remember, on the Fiesta, if there is an OD cancel button / Grade Logic button... but I 'kinda think there is.
Also, in the Fiesta, in L position, the car actually runs in as low a gear as it can, without redlining. So, in L, you actually can go down the road, going 5500 rpm (lower than redline) continuously. It simply holds the lowest gear it can, for the roadspeed you choose to go at. Not sure if the SST in the Focus will do this, in the same way.????