Wilwood 280mm kit very good value, very good for road use with the right pads. Can struggle if you really kick the shit out of them on a track and braking from high speeds they're not so confident. Very grumbly when hot (when grooved and drilled).
Godspeed - great custom brakes but very poor customer service (not fun when you want replacement discs which only he makes).
HiSpec - No idea about (look nice, but also pricey?).
Bottom line, if you track, consistently brake from silly speeds I'd save and save and buy Brembo or AP. If only fast road get Wilwoods but with 300/320mm discs if you can fit em in.
(also, Wilwood will soon have rear kit for GTIR....)