I am an Airbnb host with 30 apartments in London. I stayed in this house in August 2018. I have to say that Peoples Rental were excellent. Great communication. Friendly welcome at their office - which I though was very easy to find and in a great part of the city. Linen and towels supplied by the company were extremely good quality. 10/10 for them.
The house was not as good - in particular the kitchen was below standard but it was adequate. However the beaches there are superb and in particular Gorliz is perfect for families with young children. The pool is a bonus too.
I would recommend the property on the whole and would certainly recommend People Rentals Bilbao who manage many such listings.