We stayed at Cristina and Marta's apartment for four nights and it was exactly what we were looking for. The place was clean and very well furnished, with a great kitchen and living area. Location was a quick 15 metro ride from the top attractions in Barcelona, with stops conveniently located only a few blocks away. The neighborhood itself was very safe and quiet with nice spots for breakfast and a cool neighborhood bar only a few blocks away. Check in and checkout process was easy and the hosts were responsive and offered some nice tips, maps, etc.