This did not match our expectation at all.
It may be OK for a group of guys visiting Barcelona for a bachellor party and just need a place to crash, but for a family of 7 you should stay away from this one.
First of all, the whole appartment is dated.. Things are broken, uncleaned or poorly restored. Don't be fooled by the pristine looking pictures.
For example:
When we arrived, the host wanted to show us the balcony and broke off the handle that opens the door.
The dishwasher did not work properly (nor did they come over to fix this). We hand-washed during the week.
The oven produces a thick black smoke when heating up (we ended up ordering in every night).
We had no remote control to the television (took them 2 days to bring us one, which was great given the rainy wheather we had).
There's obvious signs of waterdamage in the ceiling in the livingroom, cut-outs were made in the plaster where they presumably attempted to fix it.
Powersockets are just jammed loosly into the wall.. no screws or anything. When unplugging a cable, big chance the whole socket comes along with it (which is great when you have 3 little kids running around the house).
If you move anything at all (like a chair), you'll find dirt and dust; minimum efforts were made to clean the appartment.
Due to the host breaking the handle on the door, we had to climb through a window in order to reach the laundry machines (which are on the balcony for some reason).
And a bunch of other things (power-outage on the first night, windows not opening, latches not working properly).. at some point we just didn't bother reporting it anymore.
As for communication with the host, it was fine initially; they were quick to reply to messages / questions and whatsapp.
But in the end, they failed at some key moments. For example, even though we clearly stated at what time we would arrive (and kept in touch with the host on our progress even during the 30 min taxi-ride there).. they still managed to have us wait outside the appartment (luggage, kids) for over 30 minutes.
Then, they only send their standard instructions/greetings-text the day AFTER we arrived (which contained the emergency phonenumber, which would have been very useful during the power outage we experienced on day 1).
Definitely won't be returning to this one.