My family, including two young sons, stayed in the apartment for 3 weeks. We loved the clean and modern apartment in a quiet neighborhood! We appreciated how thoughtful the hosts were: there were plenty of supplies (soap, napkins, etc.) to last for the whole stay, they provided child safety locks (we did not end up needing it), and there was weekly cleaning. The location is great; it is walking distance to Guggenheim, funicular, and the city center. We only only used the tram/buses/metros when it rained or to go the beach. Wish we could have stayed for longer.