Ruby on Rails?

Nay or yay and why? I don't know a drop of Ruby, nor have I heard much praise towards it, but from what I've seen it's pretty cool, and Rails especially is pretty damn robust despite the terribly incomplete documentation on it.

Does anyone here use it and love it and/or have a good tutorial resource or something on hand?

It's fairly easy to pick up, but hard to master.

You already mentioned the #1 problem with ruby in general, which is that it is badly documented.

Many rubyists use TextMate, which is only available on Mac. It's the only decent editor that offers autocomplete (intellisense for you .NET fags) for ruby.

Good luck, it's a painful process, but in the end, it's better than the J2EE situation, where half the dox refer to old versions.