They're (sort of) dimmable. They dim quite well until half brightness, but then they flash at lower levels. That beats some CFLs I tried that also advertised dimmable. They had three levels: bright half-bright, and off. At least they didn't just sit there and buzz, like non dimmable ones. This is important to us, since all of our light switches have dimmers.
Loews had a sale on Black Friday - $1 each for 60W.
I told my son that about 20 of those would be a great Christmas gift for dear old dad.
He went there, scarfed up all they had left, and kept them for himself.