Fiona and Michael were there when we arrived and although we didn't need to disturb them on our stay I get the impression they would have been available to help with any problems! They were friendly and approachable.
The apartment is true to the pictures, clean, spacious, with everything you'd need for a break in London. It has a homely feel and is clearly well looked after.
The location is fantastic, being a short walk to the tube and a short tube ride to central London. It's a peaceful area but only a short walk to nearby bars, cafes and restaurants of Balham and Clapham if you didn't feel like venturing far. It felt like a very safe area.
Overall a great AirBnB experience - if you want a homely apartment close to the centre without the expense and hectic atmosphere of those right in the middle of London, this is for you!