I was there in the beginning of April and the appartment is really nice and well located, but the sleeping room / flat was very very cold.
There is an old woman living and she don't wanted me to close the door of the living room to the balcony, because it's an old building, as far as i understood her right, so i saw a heater in the living room which was not plugged in / in use, so i took it too heat up the sleeping room a little bit but after a day she complained about the electric power consumption and i had to give it back to her.
The kitchen was dark and kinda little messy and dirty.
The bathroom is ok but the old woman complained that i forgot to take my hair out of the plug hole, i have very short hair so you can count on one hand how much hair there was left, maybe from me, that i forgot to take out once.
And last but not least she complained why i stay "so much" in the appartment, as far as i understood her right, to be honest, when i book a room and pay for it i can stay inside as "much" as i like or not, as it wasn't my first trip to barcelona and the weather was more or less every day cold / rainy / windy.