I had the Dunlop SP 01's on my old GTI as factory tires. I very much liked them actually. Favorite all season I have had.
There is a C&D article: http://www.caranddriver.com/reviews/comparisons/09q2/tire_test_nine_affordable_summer_tires_take_on_the_michelin_ps2-comparison_tests/hankook_ventus_v12_evo_page_10
I just ordered 235/45/17 for my car, stock is 225/45/17. $100 per tire, with 80 mail in rebate. Amazing price.