Other than the energy savings, I just do NOT like CFL's. I also read where they are very unhealthy for folks around them, with great increases of seizures and migranes, among other issues. The light spectrum they put out just sucks. Anyone who has worked in an office with those damn things know what I mean. And the curly Q bulbs are no better.
Yes, they save energy. And I won't go into the mercury issue.
I recently shopped in a "healthy" food store (not a health food store; the sell real prime beef among other things, but everything was fresh and top-drawer) that used LED "bulbs" overhead. I say "bulbs" because the store manager showed me one. It was really a bunch of LED's with a dispersion lens over it. The light was fantastic! Not high lumens, but a really clean, clear spectrum mix. Each bulb, I was told, was equivalent to a 55w incandescent, it had a normal screw-in base, and I was told it had a 60,000hr. life. That's 7 years lit 24/7/365. It cost US$60, yes, but bang for buck, that is very cost effective. It uses 1/2 the energy of an equivalent CFL does. It produces almost no heat.
If they can be produced more cost effectively, they seem like an excellent option for lighting by almost every criteria.
It looked like this:
