The Russians and Chinese still use it. For someone used to QNH, and with a really low transition level, it increases the work load a lot (and the chances of making a serious error).
Whilst overflying China and Russia, I've often thought how 'interesting' it would be to make a diversion with a serious technical problem to one of the more remote Chinese or Russian high altitude airfields (where they use QFE) and just to make it really interesting, have to do an NPA.