We stayed in June for two weeks in La Maddalena. The apartment is just as beautiful as the photos indicate and spacious. Only thing missing is WiFi. The rooftopterrace can be a bit noisy in the evening with all the traffic. In case we had questions, local comtact was very nice and just across the street.
La Maddalena and Caprera are beautiful islands with small beaches everywhere. None on walking distance however so a car/scooter is a must. It was not too crowded with very nice weather. more