Zagos place is very central, you can basically walk to La Rambla in 10 mins. The area is nice, a lot of narrow alleyways and a few cheap places to eat. It's safe there. It can get loud at night, but it's in the middle of the city centre so this is normal. The room has a huge smart TV (with possibility to connect to your own Netflix, if you have an account), much bigger than the one on the photo. The room itself is bright, but the other common rooms quite dark as they face the tiny backyard. All in all it's ok value for money in Barcelona.