I'm a photographer so I know a bit about quality of light. From the cheapest very cold, very directional budget units to the much more pleasing end of the spectrum where you would probably not immediately notice the difference, although they they do still give off a cooler light compared to halogen.
That is no longer the case as I have found what I believe to be an excellent value and high quality replacement bulb. Out of two Xanlites that I tested, one of them failed after a month, it felt cheap and it looked cheap but was a similar price to the rest and for that reason I won't be recommending them.
From my local Bricomarche they are all around 12- 15 euros a piece, but I get mine from Amazon as they are much cheaper, a four pack will cost you around 32 euros delivered.
LED Pros: Life expectancy 40,000 hours - Consumption 4 watts - Working temperature is cool
LED Cons: Cost is around eight times the price of halogen - Bluer/cooler than halogen
Halogen Pros: Warm light - cheap to buy
Halogen Cons: Short life expectancy 4000 hours - Working temperature is very hot - Consumption 35-50 watts
Have you made the switch?