This is a long message I sent to Airbnb Support, this is one of the worst places I've ever been in. TLDR: Urine stains in the mattress that the owner says they tried everything and didn't come off, but he assured me that the urine stain was clean??
Everything appeared to be fine, the bed was nice the bathroom looked great, but when we arrived things started to turn bad, the first problem was the mini-fridge that was turned off when we got there, so we had to wait to put our things inside, and when it started working the temperature wasn't low enough to even freeze the ice, we were afraid our food would go bad.
The second problem was the shower, it was impossible to be in the shower for more than 10 minutes, the hot water would run out completely which gave a really cheap vibe to the place, paying 155 euro for two nights I was expecting at least to have control over how much hot water I spent.
The third problem but not a major one was that we didn't have extra trash bags, so when our first one was filled we had to buy extra bags to put our trash.
Forth problem was the one that ultimately made me ask for a refund. When we arrived we found a paper on the table saying that we had to leave everything cleaned, I found it odd since I was paying a 35 cleaning fee, but I usually leave my Airbnb cleaned so I didn't mind it, but then we found some pretty atrocious things, we found some socks that weren't ours in one of our drawers, there was dust over the toaster and the most disgusting of all, on our second day we found out that our bed mattress had two big yellow urine stains which I took photos off. This is definitely the most disgusting thing I've encountered in an Airbnb, I wouldn't expect this in a 50 euros Airbnb much less one that costs this much. At the end of all this, I'm just wondering where the are my 35 euros of cleaning fee is going to.