All I can say is WOW! a massive difference on the road (I drive exclusively down unlit B roads to and from work).
I could even see perfectly well without using full beams this morning

These bulbs are not chavvy "blue effect" jobs or anything they're engineered to put out more light with a nice beam pattern and sharp cut off line (these don't dazzle others unlike cheapo bulbs with dodgy beams).
I also got a free pair of 5w capsules for the side lights which, for the first time ever, are bright white instead of the old yellowy glow so very impressed.
The Nightbreakers I had were good but not this good although they only lasted 1 year so will see how long these Phillips ones go for - the bulb life is a compromise with these high outputs.