Björn was incredibly helpful and very pleasant with helping us get settled in London. His housemate was pleasant once we got there too. However, the first night, the housemate played very, very loud music at around 3 am which kept me from sleeping for most of the night as the music kept playing in and out, along with some other loud ambient noise that sounded an artillery battle from WWI - so I would say that was the only real detriment to the trip.