Go there now to discover them!!
It's a must read if you are looking for an Airbnb Barcelona apartment because, they have reviewed hundreds of them and featured only the best ones (and between the featured ones there is one available for less than 40 euros/night, can you guess which one?).
If you are traveling to Barcelona, you may also love downloading their Barcelona City Guide App (iPhone only currently), to discover all the coolest spots in Barcelona handpicked by a local interior and graphic designer. Hotels, restaurants, coffee shops ...
As an introduction these are the amazing apartments you will find in their Airbnb Barcelona article :