Ignore the semantic games other responses play. If you're asking "Has anyone released an implementation of Perl 6 that's suitable for everyday use by someone who isn't interested in developing Perl 6 itself?", the answer is no.
I haven't used it, primarily due to the risks involved in using Mono for business purposes. (I have no interest in discussing this.)
My latest understanding is that it's still a single-developer project with better performance on many benchmarks than Rakudo but much worse startup time and significant feature overlap. It has monthly releases but makes no promises of stability or usability across releases.
