I bought the Weathertech fronts only for my 2013 ST, $100. Doesn't cover the top few inches of the dead pedal but I'm just using a small amount of "carpet protector" to handle that.
I don't snap the driver's side onto the hold-down pegs as this makes it too difficult to remove. It sits in place just fine without snapping down.
I'm in and out of my car all day with muddy boots (construction sites are not car friendly) and the mat takes all of the abuse, unlike my last focus where I had mats that covered just the floor and not the sides. The driver's side also extends way forward to protect the carpet under the pedals. This is especially helpful for keeping the carpet clean under the clutch and accelerator pedals where they get pressed all the way down on a regular basis.
2013 Focus ST3
Ordered 9/20/12 • DORA 9/20 • Ford Confirmation Email 9/24 • VIN & Build-Week-of-10/29 10/4
Build-Day-10/29 & ETA-of-11/5 10/15 • Window Sticker 10/22 • Delivery 11/8/12!