Ditto on the usage throughout the home...and ditto on the long life claims; that's BS. I've been using them here and there for years and they often fail before an incandescent.
I have had a few fail, but I don't think I've even gone through one complete set yet, and I've been using some of the older ones for more than 10 years. I've got over 30 in the house, and I've probably thrown out a total of 10 lights in that time.