Osram nightbreakers look whiter, and give better light. At least they do in the 45. However I have to say one of the pair I fitted lasted less than twelve months. That may be due to vibration in the lamps, rather than a fault of the bulbs though, as it's the same one that failed days after I bought the car.
Mine were fitted a year ago at your place, in the middle of a huge plate of sandwiches by the pianist fingered 'Dave the Monk' and excellent they are too. Bulbs that is, the sandwiches were even better!