May I ask where your negative impression of Cygwin comes from? I don't agree that virtualization is desirable for one's primary development environment (though it's extremely handy for testing and porting), because I've found it to be a recurring source of trivial inconveniences. But my view of Cygwin is from the perspective of a power user; I've been using it for a long time and have gotten used to/found workarounds for all its issues.