I helped out with a church fundraiser in which we sold these bulbs. $3 per bulb with the church getting $2 for each bulb sold. It was a great deal and we sold nearly 1000 bulbs. At home, we have replaced every bulb in the house and have not had any complaints.
Not much to say about these CFLs - they're energy efficient and provide good quality light. They were discounted under PG&E's Residential Lighting Program, so I got them for about 50 cents per CFL!
I purchased enough of these products for my entire home. The bulbs immediately began to fail. The manufacturer says the life on the bulb is seven years. About 20% of mine lasted less than seven hours. Not only is economically disastrous but with the environmental problems of compact florescent bulbs that causes environmental disaster as well. I think only about 10 to 15% of the bulbs lasted over a year. On the other hand 95% of the incandescent bulbs that I have before lasted five years and are still working what I replaced them with the CF bulbs. Other CF bulbs I've had have performed well But as I stated greenlight is a truly awful product financially and environmentally.