The water and heating worked well. The shower seemed to drain fine.
The hosts seem nice but are trying to blame the problems we had on us. Saying that all the problems happened during our short drive. As soon as we got in, we noticed the smell. The kitchen sink did not drain and it smelled horrible. We could not use it. The refrigerator was damp inside and had mold in it, which we had to clean. We scrubbed the kitchen well before taking things out.
The plug the microwave was plugged into did not work, so we had to borrow an extension cord and run it to a different plug.
Luckily this was a short trip so we could help with a friend's haunted house- so we were near a house. We used their kitchen and their bathroom. We used the bathroom in the RV a couple of times at first, but then we noticed the black tank under the RV was leaking. The homeowner who is an RV owner checked it and said it was closed completely, but still seemed to be leaking. So we stopped using it, put a plastic bag around it, and had to go into their house to use their bathroom. The RV owner later said the sensor probably had toilet paper stuck on it and that it showed as full. But it couldn't have been. We barely used it, because of the leak.
The bathroom sink drained very slowly also.
We aren't mad per say, but this really was gross and inconvenient. This was our first time renting an RV and it wasn't good.