When it is out "for real" I'll look, but I get the impression switching from Perl5 -> Perl6 is probably comparable to switching to golang, or similar.
Having said that, there is a lot more to Perl 6 than what comes baked into Perl 5.
The transition is a lot more like C to C++, where you could just use a C subset and be immediately productive.
Perl 6 has given me basically all the things I wanted changed in Perl 5 (function signatures, everything is an object, built in REPL) plus a whole bunch of stuff I didn't know I wanted but now love (gradual typing, crazy powerful type system, amazing out of box CLI argument parsing).
With Inline::Perl5 you also have access to all of CPAN.
Performance isn't quite there yet, but for the stuff I use it for (one off scripts, reports, personal CLI tools) it's been great.