Some like one, some like others. There are lots of migraine sufferers who cannot abide twisty bulbs, as they increase their migraines both in frequency and intensity. They become truly desperate when faced with the loss of their incandescent bulbs.
Some even say they will use oil lamps, which is a very pleasant light, instead of twisty bulbs.
Other bulbs out there include Ott lights, which were the first, full-spectrum lights, invented by Dr. John Ott, a pioneer in stop action photography, who did a lot of research on the best lighting for plants and animals. A bit pricey, but are regarded as the best lighting for draftsmen.
I get silent migraines, can’t say that the CFLs have affected that for me personally, but I do not like them for 2 reasons, primarily because they contain mercury and require a hasmat team to clean up. Secondly, I hate the light they emit.... it seems dull to me. I’ve been stockpiling the bulbs.
As for the Ott lights.... gotta admit I do have 2 of those(CFL) that I use for my food photography and they work really well as they are close to natural light when I can’t get natural light or need fill light to the natural light - and don’t emit much heat after being on for a while.
At the end of the day, the government has no business telling us what light bulbs we can use, they need to get out of our business and get their own mess straight. Yeah, not too happy that Bush didn’t veto this crap.