I would strongly suggest octopi over Astroprint. Don't get me wrong, Astroprint works and is easier to set up than Octopi, but in my opinion, Astroprint is like Apple, in the sense that it's easy to setup and it just works, while Octoprint is sorta like Android? Not the best comparison, but Octoprint will allow you to do so much more than Astroprint, like right now I have both, but I am liking octo more because of filament sensor, which astroprint can't do. However, I believe Autowiz has a Repetier Server? I want to try that because having one octopi for each printer (4 raspberry pis already) is fine but money consuming, and I want to try using just one Raspberry pi 3 model B to control both my TEVO tornado and upcoming Hypercube EVO, but I can't quite find the instructions to do so (sorry if I've sorta off-topic this, think I'll post this in my own thread). But yeah that's my take on Octoprint vs Astroprint. Astro to start off, but Octoprint in the long run.