It's on the main road. Due to construction and other hostels nearby, it's noisy. I could hear all the conversation from down the street. When I arrived o contacted host on email and phone. But no response. As I arrived at the building. I waited outside. After 10 min a guy walked out who luckily happened to be his friend and I got to check in.
The place is about 20 min walking distance from Sagrada and very short walk to metro. But I would choose better option of I can.