We spent five days on São Miguel and chose Ponta Delgada as central location for starting our daily trips to sites all over the island. The location offers a beautiful small town house, with kitchen and living room on ground floor, an atrium on the backside and two bed rooms on the first floor, one with exit to a large terrace with a small sea view and backyard view to neighbouring houses, ideal for a late beer or wine. In summer it's too hot to sit outside during the day (no shadow).
Due to humid climate in summer, AC is also very useful.
In front of the house there are free public parking lots on the street, but be aware that the street is very narrow, so parking as near to the house as possible is mandatory, talking about centimeters. Are car is highly recommended, when you want to see different sites on the island. Public transport is too inflexible in my opinion. Getting into downtown of Ponta Delgada it's just a ten minutes walk, parking there is not free in most cases.
The house is furnished and equipped as pictured in the description, very clean and comfortable. Only airplanes starting from and landing in PDL are really very low above this area of the city.
I can truly recommend this location for a family with two children/teens.