Mine came with 'Made in Poland' Pirellis. I do not like them. However, I think it may not be the tires themselves as the tire/wheel set up, which uses 18" wheels so that there's not that much rubber between the wheels and the road. The ride is not comfortable at all in summer.
I am currently riding on winter tires. I changed to 17" with Michelin. The ride is so much more comfortable. It feels safer.
I will most certainly change to 17" for summer as well when the current 18" die - in 2 years or so, I hope, even though personally I think the 18" do look better on the GTI. Will I go with Pirelli then? I don't know yet.