Guix 1.0 is out at last! YEAH!
https://www.gnu.org/software/guix/blog/2019/gnu-guix-1.0.0-released/
It even includes a "graphical" (read, curses-like) installer now! (The oldschool DIY route is still available if you like that though!) Lots of other stuff too!
Congrats Guix team!