Yes, it was a startup, with a staff of two. Once we had the cluster up, self monitoring, and rotating on command it is literally a half day a week to maintain the entire setup. The hardware firewall was our best investment, as it load balanced while fending off significant DDoS attacks from hackers. It also is entirely required to use an experienced network engineer for such a task. Far too many people try to wing this, and that's where all the publicized horror stories arise.