I've been using Moose for 4 months and highly recommend it. While I'm hardly an expert, with Moose it was easy to create code to process the parsetree produced by Parse::RecDescent's 'autotree' directive.

Also, the support on the mailing list (moose@perl.org) and on irc (#moose) is spectacular.

I've been using Moose on Linux, but am happy to see this information for using it on Windows.