We (2 adults + 3 kids) stayed in this beautiful and peaceful apartment for 10 days and really loved it. This was our first time in Italy and even before departing from Munich we already had ground support from Anna. We kept in touch during the journey and coordinated everything so that the check-in was very efficient and we could have some rest after our ca. 7-hour trip.
We mostly used the apartment as the starting point for different activities: we visited the beach at Lavagna and Chiavari (the Trattoria recommended by Anna was a highlight of our vacation), traveled to Porto Fino and spend the day on a beach near Santa Margherita Ligure, and traveled several days to Sestri Levante. The kids enjoyed several days of incredible weather and great beach time. We also visited Genova and its Aquarium (about 1 hour by car) and traveled to Pisa by train (from Chiavari, 1.5-2 hours depending on the ticket you buy). We didn't have time to visit the Cinque Terre and didn't want to rush a last-minute visit there. So we have a nice reason to come back in the future :-)
Although August is high season in Italy, we barely had problems finding a nice spot on the many public beaches and never felt the places were overcrowded. Finding a free parking spot is challenging in the high season unless you get to the places really early, though.
Regarding facilities. A Basko supermarket is directly on the way home from Lavagna or Chiavari. Same for bakeries. There are several gas stations as well. Luckily, we didn't need a doctor, but I am pretty sure I saw something in Chiavari.
Regarding the apartment itself: it is very fresh and mosquito-free (follow Anna's advice here :-), super peaceful, clean, has a dishwasher and a washing machine which proved its value for us (!). My oldest daughter had no complaints about sleeping in the small bed outside the bedrooms (a curtain now protects from the light and we were early up to enjoy Italy :-). The water is great, no need to buy bottled water here! Watering the plants on the terrace provided the perfect afternoon job for our two smaller kids, which enjoyed picking up khakis and watching bugs in the afternoons.
Finally, we had one day of bad weather that caused lots of damage in the area. Luckily we (and our car) were safe and Anna and his brother Andrea either messaged or came by to check. Anna even offered to replace the day for free but sadly we had to be back in Munich on the 25th and could not take the offer :-(