The loft is in a quiet location to the north east of central Barcelona (15 mins by metro or a 30-40 minute walk). It is no more than 10-15 min walk from the sagrada familia. We had the windows open at night and were not disturbed by any noise at all (Wednesday - Saturday). We walked to and from the loft at night and felt safe in the area. The metro station is a 1 minute walk away but stops running at 12 midweek.
It is a really nice clean space (open plan) with all the facilities you would expect. Fridge, freezer, washing machine, shower, toilet, bed, tv and wifi etc etc. The bed is comfy but is quite close to the toilet / shower room, however, the door offers enough privacy if you are a close couple or good friends.
No A/C however Pere provided a very effective fan and the widows can safely be left open. Temperature was not a huge issue (and I sweat quite a lot!)
There is a lovely roof terrace which Pere invited us to use at any time. Pere also provided us with a top of the range coffee machine with lots of coffee pods and a bottle of local red wine. What a host!
All in all would recommend this to anyone, especially couples who want a homely retreat away from the hustle and bustle of Barcelona centre.