Tons better (I say this as a dedicated Cygwin user since at least 2003). Cygwin, bash, and tmux are the first three things I install on any windows system, but

Tons better (I say this as a dedicated Cygwin user since at least 2003). Cygwin, bash, and tmux are the first three things I install on any windows system, but with Cygwin, you are limited to whatever Cygwin has repackaged for you. With WSL, 95% of the stuff in Ubuntu is just an "apt-get install" away. Only stuff that relies on special network access, or /proc and other system directories seems to have issues, and they are quickly working away on that. (Serial Support just landed). And now that they are planning on supporting Fedora, Suse, and Ubuntu environments, I can yum install, or just drop in-place any of the Redhat binaries as well. That's the big difference - I don't need cygwin compiled apps anymore - I just drop in the Linux variants and I am good to go.