I had one that I kept on my key-ring for about a year. I sent it back before Christmas when the lighter failed. The retailer sent it back to Victorinox, who just issued a refund. Apparently they've been discontinued due to quality issues with the lighters.
It was a nice idea for me, as it was a UK-legal EDC with a lighter, pen and all the other stuff in a fairly compact package. (I know that the butane lighter isn't a complete survival solution.) However, the lighter was never that good, even before it failed. It would often take several attempts to light, which is much worse than my Blazer.
You can still see a few on sale, but due to the lighter issues, I wouldn't recommend it.
I now EDC my Victorinox Handyman on my keyring instead. Annoyingly it doesn't have a pen :-(
eeph