While the majority of its millions of users have positive experiences, Airbnb: Dream or Nightmare? also reveals what can go wrong when you open up your cherished house to strangers or book to stay with someone you've never met.

Last year some 80,000 people in the UK listed their property on the room bookings site Airbnb and London has become one of its fastest-growing markets. While the majority of its millions of users have positive experiences, Airbnb: Dream or Nightmare? also reveals what can go wrong when you open up your cherished house to strangers or book to stay with someone you’ve never met – from houses ruined by out-of-control parties to prize possessions being stolen, hosts whose behaviour is completely inappropriate to accommodation that is double-booked, dirty and in some cases dangerous.

As George Osborne brings in tax breaks to owners who rent out their homes short term and with more and more people listing their properties, what impact is Airbnb having on the rental market? The programme investigates claims that it’s pushing up rents and pricing people out of their own communities, whilst at the same time turning residential areas into tourist zones.