We spent about an hour in the DZ last night. I got up to DZ12 and made about $600, didn't buy anything though. We didn't come across a single player, everything we killed was an NPC. The extractions were fairly easy, it really was a good time. That said, we were in a party of four (bear, cripspee, lee and myself) so maybe players saw us and thought better of it, who knows. I'm loving it, the difficulty feels spot on, but it really is a team area, I don't think I would've stood a chance was it not for those guys.
Got loads of blues, most of which are too high level for me to use but they're good to have for when I eventually level up. One thing I wish was better is the size of the DZ backpack, but I haven't really looked in to upgrading it yet, maybe I can simply flop some cash on the counter and get a new one, who knows.
Loving it. I can imagine it'll get pretty damn tense when you come up against another team.