Not fast, ugly, bad integration in the OS, often outdated, bad package manager. Well, still better than not having a Unix prompt I guess.
I don't really understand why the console subsystem in Windows is so slow that it can actually add a significant amount of time to a build with lots of scrolling text.
Even the "slow" Terminal.app is a whiz by comparison, to say nothing of Gnome Terminal, or, rxvt.
I you really should install cygwin (and MinTTY).
http://www.catb.org/~esr/writings/unix-koans/shell-tools.htm...