Welcome to the forum!
What age is the GTI? at that price, Id expect it to be a 56/07/57 or in that area, depending on mileage!
Unfortunately, Im leaving for BMW, but only because I got such a good deal - the GTI is an absolutely SUPERB car - you wont regret buying one.
There were odd issues with coil packs/steering racks and rear brake calipers on earlier 05/55/06 modeals, but after that, there are no problems that are common.
BUY IT BUY IT BUY IT....you wont regret it!
andy