The house is very beautiful and very conveniently placed. Close enough to the tourist attractions but not too close that shops are unreasonably expensive. One thing that is not mentioned beforehand was, they require a contract in which you are also accepting 200 Euro deposit (in case for damage) upon signing. According to Airbnb rules, renters can request a contract but the guest should be informed about it at the time of the reservation. Otherwise guest has a right to decline. Fortunately, they did not insist on it, so it was not a problem for us.
Overall, I would stay in Ola once again for sure. Best place in Barcelona to stay in, at least from the ones I have experienced.