We stayed at Eloy & Maria’s apartment for 7 nights and loved it.
The apartment was recently renovated and is very comfortable. Although the apartment is not very large, there was more than enough space for four adults and uses space efficiently. It is on the third floor facing the main street but was not noisy. There is an elevator if you chose to not climb the two flights of stairs.
Eloy and Maria have thought of everything and had plenty of kitchen & bathroom supplies. They even have three different styles of coffee machines to satisfy different tastes. There is a small market next to the apartment where you can purchase groceries. There are also several cafés and restaurants nearby. We especially liked going to Babelia Books & Coffee for breakfast. Rekons was also very good.
The Sant Antoni neighborhood is a working neighborhood within easy walking distance of La Rambla and Montjuïc. Camp Nou is not much farther (~3km) and we walked back after a game. We did not have a car but there are several paid parking areas nearby. If you chose to use the metro, the Sant Antoni station is a block away. Taxis are also readily available and we highly recommend the mytaxi app. It cost about 35 euro for a taxi from the airport.
We really enjoyed Eloy & Maria’s apartment and highly recommend it for those visiting Barcelona.