OK, so I am not excactly an early adopter, but I had some time and had to try it out.
First I followed this guide:
http://wiki.rubyonrails.org/rails/pages/RailsOnWindows
Then I tryed out the first chapter of "Rails for .Net developers" from pragmaticprogrammers.
I must say that it really just works!
Of course this is a really simple app, but scaffolding is a great thing for CRUD.
This is a screenshot from my very first RoR application:
