CFLs in the kitchen

I'm not fully convinced about CFLs.
Are they really better for the planet?
Do they really save money?

But despite my sceptism, I'm putting CFLs into our kitchen GU10s

GU10 CFLs (aka energy saving spots)

I decided it was time to fit low-energy bulbs in our kitchen/diner. We currently have 2 surface mounted fittings, a 4-spot bar fitting in the kitchen area and a circular 3-spot in the diner area. There are signs that the 4-spot was a replacement for a traditional florescent tube whilst the 3-spot probably replaced a simple pendant lamp.