Have you ever spent more than an hour on an OSX mac? The shell is Unix BASH, which IMHO is more flexible than any PC or even the CLI. It really is a very nice system, and reminds me of the Amiga a lot. Give it a chance.
With Cygwin, I have bash on windows. Agreed, it's much better than the normal windows command line. But you don't need to switch OS to have it.
srg