OP, be very careful when dealing with ads such as this one. I took a quick look on Facebook marketplace and this same camper is listed at least three times for $1600, in three different locations. Two different locations in Tennessee and one in Georgia. IMHO this is probably a scam. As the old...
I bought one of their 3-9X40 mil-dot non illuminated scopes ($90 IIRC) last year at one of the gun shows I attended. It replaced a fixed power 4X32 on my favorite 22 magnum rifle. I’m happy with it so far. No problems with it so no experience with their warranty.