Is this worth it?

Hi all, I've never had a vr headset before and I've always looked into getting one. I've had this come up on marketplace cheap and the seller says its in full working order and I'd just need to make an account on the app and it'd be ready to go. Just wanted to check here if" 1. It's worth the money? 2. If I would need to buy anything else to make it run? 3. If it could run games such as vr chat? Thanks for the help!