We stayed at Pauline's for a week at the beginning of August; 4 adults and an 8 year old.
The house is a lovely place to spend a weeks vacation, we often had dinner at the house after long days at the beach, enjoying dinner in the garden.
We had a car so didn't make use of the public transport, although Uber is available so is a very accessible way of travel with the house just being on the outskirts of the city.
We did a few trips out to the coast (Arcachon) which turned out to be a very easy drive, typically taking around 1 hour 15 mins. We would highly recommend this as a great place to stay in Bordeaux, very accessible to the city but a large family house with a lovely outdoor space.