We really enjoyed our stay in this nice apartment. It has enough room to host 3-4 people with two bedrooms, a nice bathroom with a spacious shower and the joined kitchen, dining table and living room.
Being on the top floor was especially nice as the apartment has two private terraces so we could enjoy the sun in the morning and throughout the day. This was perfect in autumn, in summer you would probably want to close the blinds and use the air condition which was available in every room.
Located 5-10 minutes east of Placa Catalunya a lot of sights you want to visit are in walking distance or you take a bus or the metro for those further away. The central location also means you have multiple supermarkets, cafés, tapas bars and restaurants to choose from - including many of the well known (fast) food brands.