It is a nice clean flat, the room was big enough, although it is a bit noisy sometimes from the room as it is near the front door and as the flat is relatively small you can also hear the TV in the living room and people talking there from the room.
Luis and Sandra were respectful and helpful if i needed any help with anything. I didn't see Luis much but I did at times find Sandra a bit unfriendly with me though as whenever I spoke to her (to be friendly and avoid awkward silences), if i saw her in the kitchen for example she would only reply with one word answers.