My FAE one is still fine. I now carry a spare because they're not expensive and easy to fit (if I were 20 years younger and lost a few stone) so if one fails I don't get stuck waiting for a new one.
FAE is not available through the normal reputable sources this side of the pond. But Facet should be pretty good at producing switches, and not expensive. I plan to pick up a few more for my other cars later in the week when time allows