I use Astaro v3 and currently testing v4 (power user) at home. My Config:
Nic 1 External/Internet Nic 2 Internal Nic 3 DMZ (Linux Test Web and e-mail server)
I currently have 03 cumputers protected behind the Firewall.
As an network consultant I am also testing ASL v4 for a big client of mine but after 03 formats and re-installs (needed to test other linux systems and configs) I can´t say much of the new version. What I can say is I find ver3 just great.