Confusingly there's two types of front wiper blades depending on the model year of the car. Early 2004 to late 2005 cars had the hook like the one you showed, Bosch A937S or Valeo VM310 will fit these. MY2006 and pretty much all new VW's onwards had these changed where you push down a tab to quickly release the wipers, Bosch A980S or Valeo VM331 will fit these types of connectors.
My GTI is a 2005 model and I'm using Bosch A937S on mine, though I had a 2006 Golf before that and out of the two I personally prefer the quick release mechanism. But either way they are relatively easy to replace and shouldn't take more than 5 minutes, just remember to turn on the ignition to initiate the accessory (electrics) briefly then off and press down on the wiper stalk once to put it on the service position where the wipers will stop halfway for easy access.