Studio Apartment in South Kensington 10

We booked and paid for four people, but there were only three beds. The fourth person was meant to use the sofa, but its mattress topper was heavily stained, with visible urine marks. One of the beds had blood stains, and the bathroom was very dirty. There were also several mouse traps in the stairwell, which immediately worried us. We chose the apartment because it advertised an elevator, as one of us had an injured foot and depended on it. It was broken when we arrived. We were told it would be fixed the next day, but it wasn't. When we raised all this, the person handing over the apartment behaved very unprofessionally, shouted at us, and told us to accept it or find somewhere else. The location is good, but this was the most unhygienic apartment we've experienced. Given its condition and how guests are treated, I can't recommend it. In our opinion, it's highly overpriced for what it offers.