Sanath had agreed for returning 1 day later after I cleanup the vehicle. but he forgot, and charged me extra. Plus his gray tank was full even tough I did not use the kitchen. He had himself used the trailer for a trip 1 day earlier than my pickup. His black water light was malfunctioning, he had mentioned it when I picked up the trailer. When I returned it, while I had emptied both black and gray water, he mentioned to me that black was not emptied (it showed 4 lights, while he expected 3 lights after emptying), he had himself mentioned that the sensors might not be working properly sometimes. I was not able to use cook top even after switching on the Gas.. and neither did the fridge work during the driving to my campground. Maybe Propane was empty initially itself, but he never mentioned that to me. All in all, not clear communication, going back on what we had agreed initially.