This is a large attractive lower ground floor apartment that worked really well for us. We were in Edinburgh for a family event and it was easily big enough to fit our family of four (with two teenage daughters) and their grandparents without frictions! And the broadband was good.
The Morningside area is great, it's five minutes from Waitrose on foot and twenty from the airport by uber or car.
We would recommend this apartment to others with large families and will use it again when visiting our relatives.