I've been using BTC for a while. I've been using it at exchanges, to trade altcoins and to order goods over the Internet, but I've never exchanged BTC with someone in front of me. At a store or between friends, or family. This despite having had long conversations about BTC with various kinds of people, and attending a few meetups.
Who has exchanged BTC F2F?
Yes I have used a well known platform to do it, holds the money in escrow until you receive the bitcoin. Never had any problems. It feels a bit weird the first time though..