My brother and I stayed last week just before the Coronavirus lockdown came into effect so our visit had to be cut short unfortunately! The apartment was fantastic, lots of room, really comfortable and incredibly clean and tidy. The check in was really good, we were shown very thoroughly through the apartment and also given recommendations on restaurants etc. The terrace is great and has amazing views of the city and the park just below.
Location wise it was perfect with a supermarket close by and it was a really nice 20-25 min walk/stroll down to La Rambla. The apartment also has Chromecast which was a very nice touch as it meant we could watch a film at night or something on the tv at breakfast before heading out into the city.
I'd highly recommend staying here if you're visiting Barcelona!