We very much enjoyed our stay in Joe's duplex (actually, 3 floors). The flat is comfortable, clean and welcoming and Joe was very helpful and friendly, introducing everything to us, then checking in with us later to make sure we had all we needed. The location is great, with good access to shops, plenty of excellent transport options and a short walk into West Hampstead, Hampstead Village and Hampstead Heath. It is close to a main road, thus gets some traffic noise but that was a small price to pay for a really good stay.