I stayed at Gareth's apartment last weekend and everything was perfect! Gareth was extremely helpful in providing any kind of information that we were looking for. The apartment in itself is great and has everything you need! West Hampstead, where the flat is located, is a nice area with a lot of restaurants and pubs. I went running in Hampstead Heath, a very nice park 10-15 min away with stunning views over the city. There's a 5 min walk to get to the Thameslink, the overground and the underground, so it's very easy to explore London from here. Would highly recommend this place to anyone I know.