The apartment is perfect/excellent located for visiting Barcelona. When it comes to sleep, for one of the bedrooms is a nightmare because of the street noise and especially due to a disco club behind. The second bedroom is better in terms of noise but not so bright.
The apartment has a kitchen and a bathroom renovated, the rest is crap. However, the new renovated parts are not so well maintained anyway. Overall cleaning was superficial, I didn't feel comfortable at all.
So is up to you to balance between a perfect location for visiting and a noisy and quite superficial maintaining apartment. To notice, beds were comfortable, but were the only one of this kind. The table and sofa in the living room were in extremely bad conditions. The accessories from the kitchen were also in a not satisfactory condition. It looks like they are renting out intensively this apartment with a minimal maintenance cost.