No doubt it's getting there, but with a couple of the big ones (MSVC especially) missing chunks it's hard to shift over completely. I've used it a few times with GCC and I've been pretty much happy with all the new features, looking forward to using it a bit more often.
Unfortunately there's still lots of stuff missing, e.g. delegated constructors and, probably most significantly, constexpr.
The apache table[+] has been updated as of this month, and MSVC (with a version given as "11.0 nov'12") now is looking rather better, but is still missing constexpr... :(
Still, it appears that there should be fairly good support in all major compilers within the next few years, at least if you can depend on your devs using relatively up-to-date compiler releases (not at all a given where I work!)... :]