you've been in a very nice house with all the comforts, every room has air conditioning, the bedroom is like a picture and simply wonderful the smallest room and a normal room.
you booked for 4 people and then you told me that you would arrive in 5 and you simply paid the price difference as you had already paid for the 3 and 4 person.
in Amalfi there is no gas then and all electric, and it is normal that if you turn on 3 air conditioners, the hob and hot water the power goes away, just have a little attention.
in your review you wrote only negative things and I do not understand why because you were in one of the most beautiful places in the world and I repeat you were in one of the most beautiful houses.
I think you have to go to the hotel to have all the services you ask 5 stars but I do not think you can pay for one more person only 20 euros.
I thank you for being my guest.