Like I say, I've had both Xparts and genuine and would definitely recommend the latter.
As I have got genuine grilles all round the Xparts one was not much of a saving, if at all. It just never lined up to the arches properly, even with adjustment and I won't be the only one to say this if you search forums.
eBay is best to look, you will have a good chance of finding a painted one although it may take a few weeks of searching. Beware slightly different Jetta/Golf Estate bumpers being touted as GTI/GT ones.