@chrisfu It depends a lot on what's going on during the week. The range is probably 0-8 hrs/week, give or take a couple of hours.
I use the lab to test out ideas, test tools I'm not familiar with, and validate some basic assumptions before I move them into a "real" [Red|Purple] test in the work-world.
(I may move to pfsense. Opnsense is not behaving in a way I expected. It's been a while since I played with this. I want more instrumentation, otherwise I'd just go w/an ubuntu box w/ipfw.)