The flat of Joaquim has a good location, close to the metro and the bus to go to the airport.
It has all you need (bathroom stuff, kitchen stuff, bedroom stuff...).
It's a really big flat (we were 3 friends), so it's totally ok for 6 people.
The only issue was the cold : the flat has only 2 heaters and when the weather is not sunny (it happen when it's not summer) it's really cold inside.