I've recently seen posters using this on MN yet in real life I don't know anyone using it in speech.
The only person I know who uses it a lot is my Mum's neighbour, in her late 80s, and even as a child I thought it was quite antiquated and '1950s'.
I simply don't know anyone who says that word now.
(and I'm solidly middle class with educated middle class friends, if that makes any difference.)