We had 4Z do a pre-sale inspection on a used RV we were buying from a private seller. They were very efficient and had good communication during the process. They inspected the RV in a few hours and gave us a report over the phone. My reason for a 4 star is because the inspector didn’t mention the soft spot in the flooring, but later when asked about it he mentioned that he was aware of it. On our way out of town with the newly purchased RV we had new tires put on elsewhere and were informed that the wheel bearings were bad. So we took it to 4Z. They fit us in last minute, charged us fairly, and allowed my young kids, husband, dog and myself to sit in their store room while we waited for the fix. Overall good experience. We wish the new owners the best.