I've no complaints about the shocks and brakes - the R and PP share a slightly better brake set-up than the standard GTI and GTD, and i've found the brakes more than adequate in both the GTD and the R, both offer very good stopping power. The suspension/shock set-up is also similarly good on a car of this price. My R is on 19s without DCC and still behaves competently and comfortably in all conditions except the very roughest of road types - pot-hole riddled side streets.
Enhancements to either the shocks or brakes would require noticeable additional outlay for VW to supply, but the Bridgestones aren't any cheaper than the competition that does the same job so much better, which is why it is so annoying.
If Asda value beef mince with extra gristle and 25% fat was the same price as Aberdeen Angus steak mince, which would you buy for making a Spag Bol?