I decided to use them in the summer and during any hot weather times because by saving 75% on the electric bill I can run my air conditioner more!!! They are also, frankly, cooler than incandescents.
BUT, I keep the incandescents for fall and winter and thru spring if cold enough because they put out WARM light and WARMTH! That helps the heating bill.
I don’t give a hoot about the “environment” I just care about the electric bill and my comfort.
I put compact fluorescents into my garage and they were great all summer and fall. Winter hit and the stupid bulbs never warm up enough to even come on. They are useless when cold.