Nougava's place is great. The location could not be better- immediate access to the street with plenty of restaurants, supermarkets, bars, etc.
The space itself is quite large and can easily accommodate big groups. The spacing between the rooms and bathrooms means that each room has far more privacy than you'd get if they were all clustered together.
The living room was spacious and comfortable, with a huge TV. There's a large dining table, and a beautiful kitchen.
The bedrooms were great, with comfortable beds.
The showers were high pressure and had plenty of hot water. The one downside (which is common in Europe) is that there's no shower door- just half a wall. So it's pretty much guaranteed that water will splash out onto the floor of the bathroom.
The internet was solid- 34 mbps down and 16 mbps up. However, due to the long layout of the apartment, the WiFi signal doesn't quite reach the furthest bedroom.
Overall we loved Nougava's place, and would have gladly stayed there for longer. Next time we visit Barcelona with a group, we'll absolutely be back there!