Karol and Inti were very friendly and welcoming hosts, they were always quick to respond and gave us tips and recommendations. The room itself is a great find for those who only need a bed and a bathroom because they are out exploring the city all day long. The underground station is 5 minutes away so the centre is easily accessible in 30 minutes. The neighbourhood is quiet.
Our only note would be about the cleanliness: the room could have used a vacuuming and some dusting but since none of the previous reviews mentions this, I feel like this could have only been a one-off situation.
So if you are looking for a budget friendly stay in a quite place in London with great access to public transport then hesitate no more and choose Karol's room!