I do not like the light for one thing
As Jim_Tx pointed out, by changing the mix of phosphors, the color temperature of flourescent lighting can be matched pretty well with incandescent lighting, but it's more expensive than the standard bluish flourescent light.
I will be stocking up on a lifetime supply of incandescents before they stop making them.
That was my decision when I first heard this. I have a mix of flourescent/incandescent lighting in my home and incandescent can't be replaced by the flourescents in some applications.
can cause migraines
That's called the 60 cycle strobe effect and can be allieviated by good lighting design in a commercial building that has access to 3 phase power. Residences use single phase power so are pretty well screwed.
Flourescents also are more susceptible to temperature than incandescents.
I've also found the life expectance of the CFL's to be dicey. That could just be a result of poor quality control on the assembly line though.
In fact, I think the switch from the old core and coil ballasts to the electronic ballasts resulted in a more energy efficient product but one that was not as durable as the old technology. Again though, that could be just a trend towards less stringent quality control.
The change from core and coil style transformers to electronic helped improve fluorescent lighting, but it's not yet ready (and probably never will be) to replace incandescents completely.
I think this law is a bad idea, we need more viable options before we can say goodbye to incandescents.