Windows 10 impressed me, but overall, I miss those POSIX-like conventions.
I miss how in OS X, I can at least open up a terminal and go to shop. cd / mkdir / tmux / vim
I'm disappointed by the call homes.
The lack of a package manager. Chocolate GUI is kind of a joke. Even Synaptic could queue multiple packages back in 2000.
MSFT promised an SSH client. It's nowhere to be found.
Overall, I'd rather fork over the cash and get a POSIX-like environment with OS X. If not, Fedora and Ubuntu are so featureful.