I had Osram night breakers on my ex-Polo and they lasted for like less than 5 months. Decided to go back to normal Osram long lifes, since I dont like changing bulbs that much and I usually only drive at daylight.
And the price? Those "breakers" cost 12,5€ a piece, so...
P.S. Now I dont even know what I have on my Golf, but when the time comes, I doubt I buy those breakers nor similars again.