We sailed on the Epic in 2012. My wife and I used the Freestyle Deck most at sea days. There were typically 5-10 adults. More male than female. Men were always nude, women mixed between nude and topless. There is no shade at all. Waiters occasionally came up for drink orders and were unobtrusive. No voyeurs, occasionally someone would come up the stairs, see the area, and immediately leave. I believe they were just exploring the ship, it is the highest accessible public area. BTW, the new Breakaway and Getaway both have a similar area according to NCL's deck plans. Enjoy!