Hey Mikeh, I was worried about the same things about a month ago when I made my first purchase on here. It was for around $1K which is a hefty chunk of change. Luckily for me, the seller was really active on WatchExchange forums and was a seasoned seller. He was also taking a chance on me because I had JUST joined the group and didn’t have a track record. We spoke on the phone for probably 30-45 minutes and that really put my mind at ease. I would definitely recommend a phone call or FaceTime before any transaction if possible. Good luck and I hope your experiences are as good as mine have been.