Martin's place was great, we had an amazing Airbnb experience.
First , the communication with Martin was perfect before coming to his place, with very detailed informations and helping tricks and good plans for us in ou London stay.
The room is very very close to Northfield tube station, on the Picadilly line, witch is perfect if you are coming/going to the Airport or St Pancras/King cross train station, but also to most of the touristic places in London :)
The room was really cosy, exactly the same as the photos on the airbnb page, and the bed was really confortable for a couple, even if it looks small, it is not. The room was also very clean and all the furnitures and towels very new, the bathroom too.
Martin and his fiancé were adorable, friendly and welcoming, they made us feel like home and we had nice chats
I would highly recommend his place, and definitely come back as soon as possible :)